5x-21=7x-39

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Solution for 5x-21=7x-39 equation:


5x-21=7x-39

We simplify the equation to the form, which is simple to understand 
5x-21=7x-39

We move all terms containing x to the left and all other terms to the right. 
+5x-7x=-39+21

We simplify left and right side of the equation. 
-2x=-18

We divide both sides of the equation by -2 to get x. 
x=9

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