2a+7a=-70

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Solution for 2a+7a=-70 equation: 



2a+7a=-70

We move all terms to the left:

2a+7a-(-70)=0

We add all the numbers together, and all the variables

9a+70=0

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

9a=-70

a=-70/9

a=-7+7/9

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