8-9x=21x-7

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Solution for 8-9x=21x-7 equation:


8-9x=21x-7

We simplify the equation to the form, which is simple to understand 
8-9x=21x-7

We move all terms containing x to the left and all other terms to the right. 
-9x-21x=-7-8

We simplify left and right side of the equation. 
-30x=-15

We divide both sides of the equation by -30 to get x. 
x=0.5

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