-21=x/2-7

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Solution for -21=x/2-7 equation: 



-21=x/2-7

We move all terms to the left:

-21-(x/2-7)=0

We get rid of parentheses

-x/2+7-21=0

We multiply all the terms by the denominator


-x+7*2-21*2=0

We add all the numbers together, and all the variables

-1x-28=0

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

-x=28

x=28/-1

x=-28

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