What is 7a - 5 = 2a - 15

asked Nov 14, 2015 84.8k views

4 votes

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2 votes

7a-5=2a-15
Subtract 2a from both sides
5a-5=-15
Add 5 to both sides
5a=-10
Divide 5 on each side
a=-2

Sinh Phan answered Nov 14, 2015

8.9k points

5 votes

7a-5 = 2a-15
subtract 2a
5a-5=-15
add 5
5a=-10
Divide by 5
a=-2

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