-2x+9=8x-21

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Solution for -2x+9=8x-21 equation:


-2x+9=8x-21

We simplify the equation to the form, which is simple to understand 
-2x+9=8x-21

We move all terms containing x to the left and all other terms to the right. 
-2x-8x=-21-9

We simplify left and right side of the equation. 
-10x=-30

We divide both sides of the equation by -10 to get x. 
x=3

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