21-7=x

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Solution for 21-7=x equation:


21-7=x

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

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

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

We divide both sides of the equation by -01 to get x. 
x=14

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