4+x+2=-2x+21

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


4+x+2=-2x+21

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

We move all terms containing x to the left and all other terms to the right. 
+1x+2x=+21-4-2

We simplify left and right side of the equation. 
+3x=+15

We divide both sides of the equation by 3 to get x. 
x=5

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