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-31+4x=71-2x
We simplify the equation to the form, which is simple to understand
-31+4x=71-2x
We move all terms containing x to the left and all other terms to the right.
+4x+2x=+71+31
We simplify left and right side of the equation.
+6x=+102
We divide both sides of the equation by 6 to get x.
x=17
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