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13x-(x-4)=8x+12
We simplify the equation to the form, which is simple to understand
13x-(x-4)=8x+12
Remove unnecessary parentheses
13x-1x+4=8x+12
We move all terms containing x to the left and all other terms to the right.
+13x-1x-8x=+12-4
We simplify left and right side of the equation.
+4x=+8
We divide both sides of the equation by 4 to get x.
x=2
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