2*7-a=-30

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Solution for 2*7-a=-30 equation: 



2*7-a=-30

We move all terms to the left:

2*7-a-(-30)=0

We add all the numbers together, and all the variables

-1a+44=0

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

-a=-44

a=-44/-1

a=+44

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