-21-21x=-147

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Solution for -21-21x=-147 equation: 



-21-21x=-147

We move all terms to the left:

-21-21x-(-147)=0

We add all the numbers together, and all the variables

-21x+126=0

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

-21x=-126

x=-126/-21

x=+6

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