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438=6(-11x+18)
We move all terms to the left:
438-(6(-11x+18))=0
We calculate terms in parentheses: -(6(-11x+18)), so:We get rid of parentheses
6(-11x+18)
We multiply parentheses
-66x+108
Back to the equation:
-(-66x+108)
66x-108+438=0
We add all the numbers together, and all the variables
66x+330=0
We move all terms containing x to the left, all other terms to the right
66x=-330
x=-330/66
x=-5
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