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2x-2(x+4.25)=128.5
We simplify the equation to the form, which is simple to understand
2x-2(x+4.25)=128.5
Reorder the terms in parentheses
2x+(-2x-8.5)=128.5
Remove unnecessary parentheses
+2x-2x-8.5=+128.5
We move all terms containing x to the left and all other terms to the right.
+2x-2x=+128.5+8.5
We simplify left and right side of the equation.
0x=+137
0=137
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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