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10x-4=-2(2-5x)
We move all terms to the left:
10x-4-(-2(2-5x))=0
We add all the numbers together, and all the variables
10x-(-2(-5x+2))-4=0
We calculate terms in parentheses: -(-2(-5x+2)), so:We get rid of parentheses
-2(-5x+2)
We multiply parentheses
10x-4
Back to the equation:
-(10x-4)
10x-10x+4-4=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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