7x+21=-12-4x

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Solution for 7x+21=-12-4x equation:


7x+21=-12-4x

We simplify the equation to the form, which is simple to understand 
7x+21=-12-4x

We move all terms containing x to the left and all other terms to the right. 
+7x+4x=-12-21

We simplify left and right side of the equation. 
+11x=-33

We divide both sides of the equation by 11 to get x. 
x=-3

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