x+2x=84

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Solution for x+2x=84 equation:


x+2x=84

We simplify the equation to the form, which is simple to understand 
x+2x=84

We move all terms containing x to the left and all other terms to the right. 
+1x+2x=+84

We simplify left and right side of the equation. 
+3x=+84

We divide both sides of the equation by 3 to get x. 
x=28

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