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14x+7x+6=-5x-20
We move all terms to the left:
14x+7x+6-(-5x-20)=0
We add all the numbers together, and all the variables
21x-(-5x-20)+6=0
We get rid of parentheses
21x+5x+20+6=0
We add all the numbers together, and all the variables
26x+26=0
We move all terms containing x to the left, all other terms to the right
26x=-26
x=-26/26
x=-1
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