7x+21=77

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Solution for 7x+21=77 equation:


7x+21=77

We simplify the equation to the form, which is simple to understand 
7x+21=77

We move all terms containing x to the left and all other terms to the right. 
+7x=+77-21

We simplify left and right side of the equation. 
+7x=+56

We divide both sides of the equation by 7 to get x. 
x=8

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