-21=x/4-7

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Solution for -21=x/4-7 equation: 



-21=x/4-7

We move all terms to the left:

-21-(x/4-7)=0

We get rid of parentheses

-x/4+7-21=0

We multiply all the terms by the denominator


-x+7*4-21*4=0

We add all the numbers together, and all the variables

-1x-56=0

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

-x=56

x=56/-1

x=-56

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