31-7x=3x+21

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Solution for 31-7x=3x+21 equation:


31-7x=3x+21

We simplify the equation to the form, which is simple to understand 
31-7x=3x+21

We move all terms containing x to the left and all other terms to the right. 
-7x-3x=+21-31

We simplify left and right side of the equation. 
-10x=-10

We divide both sides of the equation by -10 to get x. 
x=1

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