3(5+2)-6=21-(135-125)

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Solution for 3(5+2)-6=21-(135-125) equation:


3(5+2)-6=21-(135-125)

We simplify the equation to the form, which is simple to understand 
3(5+2)-6=21-(135-125)

Reorder the terms in parentheses
+(+21)-6=21-(+10)

Remove unnecessary parentheses
+21-6=+21-(+10+)

Remove unnecessary parentheses
+21-6=21-10

We move all terms containing  to the left and all other terms to the right. 
0=+21-10-21+6

We simplify left and right side of the equation. 
0=-4

0=-4

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

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