-2(-1)+4=5+(-6-7)+9

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Solution for -2(-1)+4=5+(-6-7)+9 equation:


-2(-1)+4=5+(-6-7)+9

We simplify the equation to the form, which is simple to understand 
-2(-1)+4=5+(-6-7)+9

Simplifying terms in parentheses
-2*(-1)+4=5+(-13)+9

Reorder the terms in parentheses
+(+2)+4=5+(-13)+9

Remove unnecessary parentheses
+2+4=+5+(-13+)+9

Remove unnecessary parentheses
+2+4=+5-13+9

We move all terms containing  to the left and all other terms to the right. 
0=+5-13+9-2-4

We simplify left and right side of the equation. 
0=-5

0=-5

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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