30-15=7+x

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Solution for 30-15=7+x equation:


30-15=7+x

We simplify the equation to the form, which is simple to understand 
30-15=7+x

We move all terms containing x to the left and all other terms to the right. 
-1x=+7-30+15

We simplify left and right side of the equation. 
-1x=-8

We divide both sides of the equation by -01 to get x. 
x=8

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