15a+7=16a-8

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Solution for 15a+7=16a-8 equation: 



15a+7=16a-8

We move all terms to the left:

15a+7-(16a-8)=0

We get rid of parentheses

15a-16a+8+7=0

We add all the numbers together, and all the variables

-1a+15=0

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

-a=-15

a=-15/-1

a=+15

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