21=x/7+2

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Solution for 21=x/7+2 equation: 



21=x/7+2

We move all terms to the left:

21-(x/7+2)=0

We get rid of parentheses

-x/7-2+21=0

We multiply all the terms by the denominator


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

We add all the numbers together, and all the variables

-1x+133=0

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

-x=-133

x=-133/-1

x=+133

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