3x+21=789

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Solution for 3x+21=789 equation:


3x+21=789

We simplify the equation to the form, which is simple to understand 
3x+21=789

We move all terms containing x to the left and all other terms to the right. 
+3x=+789-21

We simplify left and right side of the equation. 
+3x=+768

We divide both sides of the equation by 3 to get x. 
x=256

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