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7+2x-3=8x+20-2x
We simplify the equation to the form, which is simple to understand
7+2x-3=8x+20-2x
We move all terms containing x to the left and all other terms to the right.
+2x-8x+2x=+20-7+3
We simplify left and right side of the equation.
-4x=+16
We divide both sides of the equation by -4 to get x.
x=-4
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