40-3(-30+10)=

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Solution for 40-3(-30+10)= equation:


40-3(-30+10)=0

We simplify the equation to the form, which is simple to understand 
40-3(-30+10)=0

Reorder the terms in parentheses
40+(+60)=0

Remove unnecessary parentheses
+40+60=0

We move all terms containing  to the left and all other terms to the right. 
0=0-40-60

We simplify left and right side of the equation. 
0=-100

0=-100

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

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