7a+8=-2

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Solution for 7a+8=-2 equation: 



7a+8=-2

We move all terms to the left:

7a+8-(-2)=0

We add all the numbers together, and all the variables

7a+10=0

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

7a=-10

a=-10/7

a=-1+3/7

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