21+12x+11-3x=-40

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Solution for 21+12x+11-3x=-40 equation:


21+12x+11-3x=-40

We simplify the equation to the form, which is simple to understand 
21+12x+11-3x=-40

We move all terms containing x to the left and all other terms to the right. 
+12x-3x=-40-21-11

We simplify left and right side of the equation. 
+9x=-72

We divide both sides of the equation by 9 to get x. 
x=-8

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