Transcript Solve the equation

Warm Up
y
 14
7
Solving Two-Step Equations
Sections 2.2 A
Objective

TSWBAT solve two-step equations in one variable.
Solve the equation.
13 = y/3 + 5
Which number do I undo first?
Think about the order of operations.
 What, if we follow the order of operations, is
being done to y.

Solve the equation.
13 = y/3 + 5
Which number do I undo first?
Steps to Solving Equations
1. Undo the number being added/subtracted
to the variable.
2. Undo the number being multiplied/divided
to the variable.
Example 1
Solve each equation. Check your answer to
be sure it works.
1. -13 – 4x = 51
3. -9f + 16 = 70
2. 15 = x/3 + 5.7
4. -21 = n/3 + 2
Example 2
Solve.
You order iris bulbs from a catalog. Iris bulbs
cost $.90 each. The shipping charge is
$2.50. If you have $18.50 to spend, how
many iris bulbs can you order?
Assignment
 Pg. 91-93
#11-25, 66-78