252=21(x+9)

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Solution for 252=21(x+9) equation:


252=21(x+9)

We simplify the equation to the form, which is simple to understand 
252=21(x+9)

Reorder the terms in parentheses
252=+(+21x+189)

Remove unnecessary parentheses
+252=+21x+189

We move all terms containing x to the left and all other terms to the right. 
-21x=+189-252

We simplify left and right side of the equation. 
-21x=-63

We divide both sides of the equation by -021 to get x. 
x=3

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