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8x+2(-4x)=4
We simplify the equation to the form, which is simple to understand
8x+2(-4x)=4
Reorder the terms in parentheses
8x+(-8x)=4
Remove unnecessary parentheses
+8x-8x=+4
We move all terms containing x to the left and all other terms to the right.
+8x-8x=+4
We simplify left and right side of the equation.
0x=+4
0=4
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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