-30+10a=-70

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Solution for -30+10a=-70 equation: 



-30+10a=-70

We move all terms to the left:

-30+10a-(-70)=0

We add all the numbers together, and all the variables

10a+40=0

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

10a=-40

a=-40/10

a=-4

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