X=7(x-21)

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Solution for X=7(x-21) equation: 



X=7(X-21)

We move all terms to the left:

X-(7(X-21))=0



We calculate terms in parentheses: -(7(X-21)), so:

7(X-21)

We multiply parentheses

7X-147

Back to the equation:

-(7X-147)



We get rid of parentheses

X-7X+147=0

We add all the numbers together, and all the variables

-6X+147=0

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

-6X=-147

X=-147/-6

X=24+1/2

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