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