7=21+7x

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Solution for 7=21+7x equation:


7=21+7x

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

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

We simplify left and right side of the equation. 
-7x=+14

We divide both sides of the equation by -07 to get x. 
x=-2

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