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-4=-7x-4(1-2x)
We move all terms to the left:
-4-(-7x-4(1-2x))=0
We add all the numbers together, and all the variables
-(-7x-4(-2x+1))-4=0
We calculate terms in parentheses: -(-7x-4(-2x+1)), so:We get rid of parentheses
-7x-4(-2x+1)
We multiply parentheses
-7x+8x-4
We add all the numbers together, and all the variables
x-4
Back to the equation:
-(x-4)
-x+4-4=0
We add all the numbers together, and all the variables
-x=0
x=0/-1
x=0
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