-1x+21=7

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Solution for -1x+21=7 equation:


-1x+21=7

We simplify the equation to the form, which is simple to understand 
-1x+21=7

We move all terms containing x to the left and all other terms to the right. 
-1x=+7-21

We simplify left and right side of the equation. 
-1x=-14

We divide both sides of the equation by -1 to get x. 
x=14

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