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x*2-x=42
We simplify the equation to the form, which is simple to understand
x*2-x=42
Simplifying:
+2x-x=42
We move all terms containing x to the left and all other terms to the right.
+2x-1x=+42
We simplify left and right side of the equation.
+1x=+42
We divide both sides of the equation by 1 to get x.
x=42
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