Download Practice 7-2 Solving Multi

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Practice 7-2 Solving Multi-step Equations
Solve and check each equation.
p
1. 3 2 7 5 22
2. 2(n 2 7) 1 3 5 9
p 5 15
n 5 10
3. 0 5 5(k 1 9)
4. 4h 1 7h 2 16 5 6
h52
k 5 29
5. 3(2n 2 7) 5 9
6. 227 5 8x 2 5x
x 5 29
n55
7. 4p 1 5 2 7p 5 21
8. 7 2 y 1 5y 5 9
y 5 12
p52
9. 8e 1 3(5 2 e) 5 10
10. 237 5 3x 1 11 2 7x
x 5 12
e 5 21
11. 9 2 3(n 2 5) 5 30
12. 16 (y 1 42) 2 15 5 23
y 5 30
n 5 22
Write and solve an equation for each situation.
13. Find three consecutive integers whose sum is 51.
n 1 Yn 1 1Z 1 Yn 1 2Z 5 51
n 1 Yn 1 1Z 1 Yn 1 2Z 5 215
15. Find four consecutive integers whose sum is 30.
n 1 Yn 1 1Z 1 Yn 1 2Z 1 Yn 1 3Z 5 30
16. Jack’s overtime wage is $3 per hour more than his regular hourly wage.
He worked for 5 hours at his regular wage and 4 hours at the overtime
wage. He earned $66. Find his regular wage.
5h 1 4Yh 1 3Z 5 66
Pre-Algebra Chapter 7
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14. Find three consecutive integers whose sum is ⫺15.