Transcript Lesson 4.1: Solving Two

WARM UP
1.
2.
3.
4.
5.
6.
5x + 4 = 19
2t + 7 = -1
6m + 1 = -23
-4w – 4 = 8
-7y + 3 = -25
3t – 13 = 2
1.
2.
3.
4.
5.
6.
x=3
t = -4
m = -4
w = -3
y=4
t=5
Solving Two-Step
Equations
7th Grade
2012-2013
What is a Two-Step Equation?
• Put in your own words
• Two-Step Equation: An equation that
can be solved using two operations.
Translate the sentence below and solve.
11) Five less than the quotient of x and 2 is 37.
x  5  37
2
5  5
x
 2 2  42  2 
x  84
Translate the sentence below and solve.
5) Eight more than 3 times a number y is the
same as 29.
Check:
3(7) + 8 = 29
3y  8  29
8  8
3y  21
3 3
y7
Word Problem #1
Bobby bought 3 T-shirts at the mall and a pair of
pants for $16 at the clothing store. All together
he spent $28 for the clothes. How much was
each shirt?
Word Problem #2
• Diane sold 9 decorated flowers that cost the
same amount each plus a dozen roses for
$28. All together she sold $73 in flowers.
How much was each decorated flower?
Word Problem #3
• 331 students went on a field trip. Six buses
were filled and 7 student traveled in cars.
How many students were in each bus?
Word Problem #4
• Aliyah had $24 to spend on seven pencils.
After buying them she had $10. How much
did each pencil
Word Problem #5
• You bought a magazine for $5 and four
erasers You spent a total of $25. How
much did each eraser?
Word Problem #6
• Maria bought seven boxes to add to her
collection. A week later half of all her boxes
were destroyed in a fire. There are now
only 22 boxes left. With how many did she
start?
PRACTICE PROBLEMS
• Complete the practice problems under
Task 2.
EXIT TICKET
• Complete the problems under Task 3
labeled “Exit Ticket”. You must write an
equation and solve it for full credit.
Answers only WILL NOT receive full
credit!!