9+4x=-2x+21

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Solution for 9+4x=-2x+21 equation:


9+4x=-2x+21

We simplify the equation to the form, which is simple to understand 
9+4x=-2x+21

We move all terms containing x to the left and all other terms to the right. 
+4x+2x=+21-9

We simplify left and right side of the equation. 
+6x=+12

We divide both sides of the equation by 6 to get x. 
x=2

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