Assignment # _______ Solving One-Step Equations (P2)
Name _________________________
Standard: AF 4.1 Solve two-step equations
(working towards…)
Pre-Algebra, Per. ______
Date __________________________
Tell whether the value of the variable is a solution of the equation. Write YES or NO.
Example: 4n = 20; n = 5
4(5) = 20
YES!!!
Replace “n” with 5
1. 7n = 13; n =2
2.
88
 8; y = 8
y
3.
r
 4; r = 48
12
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Solve an equation using multiplication
y
Example:
original equation
5
3
y
 3  5  3 multiply each side by 3
3
y
= 15
Simplify
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Solve an equation using division

Example
4x = 20
original equation
4 x 20
divide each side by 4

4
4
x = 5
Solve the equation. Figure out the value of the variable!
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4.
p
9
2
5. 18 = 6g
6. 3b = 39
Check:
Check:
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Check:
7. 25 
h
14

8. 14 
x
5
9. 12 = –2z

Check:
10. 9 
n
3
Check:
Check:
11. –3x = 18
12. –7x = 35
Check:
Check:

Check:
13. Which operation should you perform to solve the equation 4x = –2?
A Multiply each side by 4
B Divide each side by 4
C Divide each side by –2
D Multiply each side by –2
Write and solve an equation representing the situation.
14. Mr. Lau drove for 4 hours at a constant speed of r miles per hour. He traveled a total of 216 miles.
How many miles on average did he drive per hour?