-x-(-15)=21

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Solution for -x-(-15)=21 equation:


-x-(-15)=21

We simplify the equation to the form, which is simple to understand 
-x-(-15)=21

Remove unnecessary parentheses
-x+15=21

We move all terms containing x to the left and all other terms to the right. 
-1x=+21-15

We simplify left and right side of the equation. 
-1x=+6

We divide both sides of the equation by -1 to get x. 
x=-6

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