8-9x=21x+12

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Solution for 8-9x=21x+12 equation:


8-9x=21x+12

We simplify the equation to the form, which is simple to understand 
8-9x=21x+12

We move all terms containing x to the left and all other terms to the right. 
-9x-21x=+12-8

We simplify left and right side of the equation. 
-30x=+4

We divide both sides of the equation by -30 to get x. 
x=-0.133333333333

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