(-9)-(7)=

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Solution for (-9)-(7)= equation:


(-9)-(7)=0

We simplify the equation to the form, which is simple to understand 
(-9)-(7)=0

Remove unnecessary parentheses
-9-(7)=0

Remove unnecessary parentheses
-9-7=0

We move all terms containing  to the left and all other terms to the right. 
0=0+9+7

We simplify left and right side of the equation. 
0=+16

0=16

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

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