3x+9/2=21

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Solution for 3x+9/2=21 equation:


3x+9/2=21

We simplify the equation to the form, which is simple to understand 
3x+9/2=21

We move all terms containing x to the left and all other terms to the right. 
+3x=+21-4.5

We simplify left and right side of the equation. 
+3x=+16.5

We divide both sides of the equation by 3 to get x. 
x=5.5

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