4a+7=2a-15

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Solution for 4a+7=2a-15 equation: 



4a+7=2a-15

We move all terms to the left:

4a+7-(2a-15)=0

We get rid of parentheses

4a-2a+15+7=0

We add all the numbers together, and all the variables

2a+22=0

We move all terms containing a to the left, all other terms to the right

2a=-22

a=-22/2

a=-11

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