7x+21=-9(x+3)

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Solution for 7x+21=-9(x+3) equation:


7x+21=-9(x+3)

We simplify the equation to the form, which is simple to understand 
7x+21=-9(x+3)

Reorder the terms in parentheses
7x+21=+(-9x-27)

Remove unnecessary parentheses
+7x+21=-9x-27

We move all terms containing x to the left and all other terms to the right. 
+7x+9x=-27-21

We simplify left and right side of the equation. 
+16x=-48

We divide both sides of the equation by 16 to get x. 
x=-3

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