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12+8x-7x=x+8x
We simplify the equation to the form, which is simple to understand
12+8x-7x=x+8x
We move all terms containing x to the left and all other terms to the right.
+8x-7x-1x-8x=-12
We simplify left and right side of the equation.
-8x=-12
We divide both sides of the equation by -8 to get x.
x=1.5
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