3+x=-2x-18

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Solution for 3+x=-2x-18 equation:


3+x=-2x-18

We simplify the equation to the form, which is simple to understand 
3+x=-2x-18

We move all terms containing x to the left and all other terms to the right. 
+1x+2x=-18-3

We simplify left and right side of the equation. 
+3x=-21

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

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