15=7x-2x

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Solution for 15=7x-2x equation:


15=7x-2x

We simplify the equation to the form, which is simple to understand 
15=7x-2x

We move all terms containing x to the left and all other terms to the right. 
-7x+2x=-15

We simplify left and right side of the equation. 
-5x=-15

We divide both sides of the equation by -5 to get x. 
x=3

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