5x-21=-2x

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Solution for 5x-21=-2x equation:


5x-21=-2x

We simplify the equation to the form, which is simple to understand 
5x-21=-2x

We move all terms containing x to the left and all other terms to the right. 
+5x+2x=+21

We simplify left and right side of the equation. 
+7x=+21

We divide both sides of the equation by 7 to get x. 
x=3

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