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8x-5(x-4)=3x+9
We simplify the equation to the form, which is simple to understand
8x-5(x-4)=3x+9
Reorder the terms in parentheses
8x+(-5x+20)=3x+9
Remove unnecessary parentheses
+8x-5x+20=+3x+9
We move all terms containing x to the left and all other terms to the right.
+8x-5x-3x=+9-20
We simplify left and right side of the equation.
0x=-11
0=-11
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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