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-2(x-7)-140=5x-7(x+8)
We simplify the equation to the form, which is simple to understand
-2(x-7)-140=5x-7(x+8)
Reorder the terms in parentheses
+(-2x+14)-140=5x-7*(x+8)
Remove unnecessary parentheses
-2x+14-140=+5x-7+*(+x+8+)
Reorder the terms in parentheses
-2x+14-140=5x+(-7x-56)
Remove unnecessary parentheses
-2x+14-140=+5x-7x-56
We move all terms containing x to the left and all other terms to the right.
-2x-5x+7x=-56-14+140
We simplify left and right side of the equation.
0x=+70
0=70
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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