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-5x-(-7-4x)=-2(-3x-4)
We move all terms to the left:
-5x-(-7-4x)-(-2(-3x-4))=0
We add all the numbers together, and all the variables
-5x-(-4x-7)-(-2(-3x-4))=0
We get rid of parentheses
-5x+4x-(-2(-3x-4))+7=0
We calculate terms in parentheses: -(-2(-3x-4)), so:We add all the numbers together, and all the variables
-2(-3x-4)
We multiply parentheses
6x+8
Back to the equation:
-(6x+8)
-1x-(6x+8)+7=0
We get rid of parentheses
-1x-6x-8+7=0
We add all the numbers together, and all the variables
-7x-1=0
We move all terms containing x to the left, all other terms to the right
-7x=1
x=1/-7
x=-1/7
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