2(-2)-5(4)-4(-1)=

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Solution for 2(-2)-5(4)-4(-1)= equation:


2(-2)-5(4)-4(-1)=0

We simplify the equation to the form, which is simple to understand 
2(-2)-5(4)-4(-1)=0

Reorder the terms in parentheses
+(-4)-5*(4)-4*(-1)=0

Remove unnecessary parentheses
-4-5+*(+4+)-4+*(-1+)=0

Reorder the terms in parentheses
-4+(-20)-4*(-1)=0

Remove unnecessary parentheses
-4-20-4+*(-1+)=0

Reorder the terms in parentheses
-4-20+(+4)=0

Remove unnecessary parentheses
-4-20+4=0

We move all terms containing  to the left and all other terms to the right. 
0=0+4+20-4

We simplify left and right side of the equation. 
0=+20

0=20

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

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