8a-2=-9+7a

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Solution for 8a-2=-9+7a equation: 



8a-2=-9+7a

We move all terms to the left:

8a-2-(-9+7a)=0

We add all the numbers together, and all the variables

8a-(7a-9)-2=0

We get rid of parentheses

8a-7a+9-2=0

We add all the numbers together, and all the variables

a+7=0

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

a=-7

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