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42=2(x+4)+2(2x+7)
We simplify the equation to the form, which is simple to understand
42=2(x+4)+2(2x+7)
Reorder the terms in parentheses
42=+(+2x+8)+2*(2x+7)
Remove unnecessary parentheses
+42=+2x+8+2+*(+2x+7+)
Reorder the terms in parentheses
42=+2x+8+(+4x+14)
Remove unnecessary parentheses
+42=+2x+8+4x+14
We move all terms containing x to the left and all other terms to the right.
-2x-4x=+8+14-42
We simplify left and right side of the equation.
-6x=-20
We divide both sides of the equation by -6 to get x.
x=3.33333333333
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