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2x+2(2x-1)=40
We simplify the equation to the form, which is simple to understand
2x+2(2x-1)=40
Reorder the terms in parentheses
2x+(+4x-2)=40
Remove unnecessary parentheses
+2x+4x-2=+40
We move all terms containing x to the left and all other terms to the right.
+2x+4x=+40+2
We simplify left and right side of the equation.
+6x=+42
We divide both sides of the equation by 6 to get x.
x=7
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