3x+21=6

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Solution for 3x+21=6 equation:


3x+21=6

We simplify the equation to the form, which is simple to understand 
3x+21=6

We move all terms containing x to the left and all other terms to the right. 
+3x=+6-21

We simplify left and right side of the equation. 
+3x=-15

We divide both sides of the equation by 3 to get x. 
x=-5

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