7a+12=-2

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Solution for 7a+12=-2 equation: 



7a+12=-2

We move all terms to the left:

7a+12-(-2)=0

We add all the numbers together, and all the variables

7a+14=0

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

7a=-14

a=-14/7

a=-2

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