Transcript Oops! - Michigan State University

STAIR Project by Katlyn Witt
Click on the arrow to advance to the next page
Just like the title states, this STAIR will teach
you how to solve multi-step equations. You
can navigate through this presentation using
the buttons at the bottom of the screen.
The arrow buttons will take you back and
forth between the different pages.
The video camera button will take you
back to the video mini-lesson, in the
event you want to review or brush up on
your skills.
 Use
the distributive property to simplify an
equation.
 Use the addition, subtraction, multiplication,
and division properties of equality to solve
an equation.
 A1.2.1
 A1.2.3
Click the video to play.
Using the steps you learned in the video,
solve the following equations. You will want
to have a writing utensil, paper, and a
calculator (but it’s not necessary).
Choose the best answer for each of the
equations.
Advance to the next page to begin.
2x + 10 = 6
x=-2
x=½
x=8
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
2x and 10 are not considered
like terms. Try again!
Back to Question
It looks like you added 10
instead of subtracting it. Try
again!
Back to Question
The first thing you need
to do is use the
subtraction property of
equality.
Back to Question
Back to Question
Click the video to play.
13 – 4x = -15
x = -1.67
x=7
x=½
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
13 and -4x are not “like terms”.
Try again!
Back to Question
It looks like you added 13
instead of subtracting it from
both sides. Try again!
Back to Question
The 13 in front is
positive, so you need to
use the subtraction
property of equality.
Back to Question
Back to Question
Click the video to play.
½ x + 5 = 25
x = 40
x = 60
x = 45
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
It looks like you added 5 to both
sides instead of subtracting 5.
Try again!
Back to Question
When getting rid of a fraction,
you need to multiply everything
by 2. You forgot to multiply the
middle term as well. Try again!
Back to Question
Start by using the
subtraction property of
equality to move the 5
to the other side.
Back to Question
Back to Question
Click the video to play.
3x – 4 + 5x = 12
x=-8
x=2
x=1
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
Be careful with combining like
terms. 3x + 5x is not -2x. Try
again!
Back to Question
It looks like you subtracted 4
from both sides instead of
adding 4. Try again!
Back to Question
Start by combining like
terms on the left side.
Back to Question
Back to Question
Click the video to play.
12x + 10 = 3x + 55
x = 4.3
x = 2.6
x=5
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
It looks like you added on both
sides instead of subtracting.
Try again!
Back to Question
You can’t combine the x’s and
the constants (just the
numbers). Try again!
Back to Question
Start with the
subtraction property of
equality.
Back to Question
Back to Question
Click the video to play.
4x + 5 – 2x = 10 + 3x
x=-5
x = 1.67
x = - 15
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
It looks like you combined like
terms incorrectly. 4x – 2x is not
6x. Try again!
Back to Question
It looks like you added 5 to both
sides instead of subtracting 5.
Try again!
Back to Question
You need to combine
like terms on the left
first.
Back to Question
Back to Question
Click the video to play.
4(x – 6) = 16
x = 5.5
x = 0.67
x = 10
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
When distributing the 4, make
sure you also multiply 4 times 6. Try again!
Back to Question
You cannot combine the -6 and
the x inside the parenthesis.
Try again!
Back to Question
Distribute the 4 by
multiplying it into the
parenthesis.
Back to Question
Back to Question
Click the video to play.
7(x + 3) = x - 4
x = -0.2
x = 2.1
x=-4
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
You cannot combine the x and
the 3. Try again!
Back to Question
It looks like you added 21 to
both sides instead of subtracting
it. Try again!
Back to Question
Distribute the 7 by
multiplying it into the
parenthesis.
Back to Question
Back to Question
Click the video to play.
5(3 + 2x) = 35
x=2
x = 10
x = 13.5
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
go to the next question.
You need to be sure to
distribute the 5 to both terms in
the parenthesis. Try again!
Back to Question
It looks like you subtracted the
5 that was in front of the
parenthesis instead of
distributing it.
Back to Question
Distribute the 5 by
multiplying it into the
parenthesis.
Back to Question
Back to Question
Click the video to play.
10(7x – 6) = 30x + 20
x = -1
x=1
x=2
I don’t know
where to start
You got the problem correct!
Click the arrow in the corner to
finish the STAIR.
You cannot combine the 7x and
-6. Try again!
Back to Question
You cannot combine the 30x and
the 20. Try again!
Back to Question
Distribute the 10 by
multiplying it into the
parentheses.
Back to Question
Back to Question
Click the video to play.
For additional practice solving multi-step
equations, follow the link to play the Rags to
Riches game.