3x-42=7x-78

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Solution for 3x-42=7x-78 equation:


3x-42=7x-78

We simplify the equation to the form, which is simple to understand 
3x-42=7x-78

We move all terms containing x to the left and all other terms to the right. 
+3x-7x=-78+42

We simplify left and right side of the equation. 
-4x=-36

We divide both sides of the equation by -4 to get x. 
x=9

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