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-6x+7(1-x)=-5(x-4)
We move all terms to the left:
-6x+7(1-x)-(-5(x-4))=0
We add all the numbers together, and all the variables
-6x+7(-1x+1)-(-5(x-4))=0
We multiply parentheses
-6x-7x-(-5(x-4))+7=0
We calculate terms in parentheses: -(-5(x-4)), so:We add all the numbers together, and all the variables
-5(x-4)
We multiply parentheses
-5x+20
Back to the equation:
-(-5x+20)
-13x-(-5x+20)+7=0
We get rid of parentheses
-13x+5x-20+7=0
We add all the numbers together, and all the variables
-8x-13=0
We move all terms containing x to the left, all other terms to the right
-8x=13
x=13/-8
x=-1+5/8
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