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189=7(6x-8)+7x
We move all terms to the left:
189-(7(6x-8)+7x)=0
We calculate terms in parentheses: -(7(6x-8)+7x), so:We get rid of parentheses
7(6x-8)+7x
We add all the numbers together, and all the variables
7x+7(6x-8)
We multiply parentheses
7x+42x-56
We add all the numbers together, and all the variables
49x-56
Back to the equation:
-(49x-56)
-49x+56+189=0
We add all the numbers together, and all the variables
-49x+245=0
We move all terms containing x to the left, all other terms to the right
-49x=-245
x=-245/-49
x=+5
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