1x+7x-12=-20

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Solution for 1x+7x-12=-20 equation: 



1x+7x-12=-20

We move all terms to the left:

1x+7x-12-(-20)=0

We add all the numbers together, and all the variables

8x+8=0

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

8x=-8

x=-8/8

x=-1

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