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-7(x+9)=9(x-5)-16x
We simplify the equation to the form, which is simple to understand
-7(x+9)=9(x-5)-16x
Reorder the terms in parentheses
+(-7x-63)=9*(x-5)-16x
Remove unnecessary parentheses
-7x-63=+9+*(+x-5+)-16x
Reorder the terms in parentheses
-7x-63=+(+9x-45)-16x
Remove unnecessary parentheses
-7x-63=+9x-45-16x
We move all terms containing x to the left and all other terms to the right.
-7x-9x+16x=-45+63
We simplify left and right side of the equation.
0x=+18
0=18
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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