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8x-28=-4(x-2)
We move all terms to the left:
8x-28-(-4(x-2))=0
We calculate terms in parentheses: -(-4(x-2)), so:We get rid of parentheses
-4(x-2)
We multiply parentheses
-4x+8
Back to the equation:
-(-4x+8)
8x+4x-8-28=0
We add all the numbers together, and all the variables
12x-36=0
We move all terms containing x to the left, all other terms to the right
12x=36
x=36/12
x=3
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