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(x)=(3x+30)
We move all terms to the left:
(x)-((3x+30))=0
We calculate terms in parentheses: -((3x+30)), so:We get rid of parentheses
(3x+30)
We get rid of parentheses
3x+30
Back to the equation:
-(3x+30)
x-3x-30=0
We add all the numbers together, and all the variables
-2x-30=0
We move all terms containing x to the left, all other terms to the right
-2x=30
x=30/-2
x=-15
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