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-102=-2(5x+18)
We move all terms to the left:
-102-(-2(5x+18))=0
We calculate terms in parentheses: -(-2(5x+18)), so:We get rid of parentheses
-2(5x+18)
We multiply parentheses
-10x-36
Back to the equation:
-(-10x-36)
10x+36-102=0
We add all the numbers together, and all the variables
10x-66=0
We move all terms containing x to the left, all other terms to the right
10x=66
x=66/10
x=6+3/5
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