3x-21=9x+54

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Solution for 3x-21=9x+54 equation:


3x-21=9x+54

We simplify the equation to the form, which is simple to understand 
3x-21=9x+54

We move all terms containing x to the left and all other terms to the right. 
+3x-9x=+54+21

We simplify left and right side of the equation. 
-6x=+75

We divide both sides of the equation by -6 to get x. 
x=-12.5

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