-x-21=30

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Solution for -x-21=30 equation:


-x-21=30

We simplify the equation to the form, which is simple to understand 
-x-21=30

We move all terms containing x to the left and all other terms to the right. 
-1x=+30+21

We simplify left and right side of the equation. 
-1x=+51

We divide both sides of the equation by -1 to get x. 
x=-51

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