84=7(2x-9)

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Solution for 84=7(2x-9) equation:



84=7(2x-9)
We move all terms to the left:
84-(7(2x-9))=0
We calculate terms in parentheses: -(7(2x-9)), so:
7(2x-9)
We multiply parentheses
14x-63
Back to the equation:
-(14x-63)
We get rid of parentheses
-14x+63+84=0
We add all the numbers together, and all the variables
-14x+147=0
We move all terms containing x to the left, all other terms to the right
-14x=-147
x=-147/-14
x=10+1/2

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