-20+30-40-(-50)=

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Solution for -20+30-40-(-50)= equation:


-20+30-40-(-50)=0

We simplify the equation to the form, which is simple to understand 
-20+30-40-(-50)=0

Remove unnecessary parentheses
-20+30-40+50=0

We move all terms containing  to the left and all other terms to the right. 
0=0+20-30+40-50

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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