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83=-5x+7(1-2x)
We move all terms to the left:
83-(-5x+7(1-2x))=0
We add all the numbers together, and all the variables
-(-5x+7(-2x+1))+83=0
We calculate terms in parentheses: -(-5x+7(-2x+1)), so:We get rid of parentheses
-5x+7(-2x+1)
We multiply parentheses
-5x-14x+7
We add all the numbers together, and all the variables
-19x+7
Back to the equation:
-(-19x+7)
19x-7+83=0
We add all the numbers together, and all the variables
19x+76=0
We move all terms containing x to the left, all other terms to the right
19x=-76
x=-76/19
x=-4
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