3x+15x-72=0

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Solution for 3x+15x-72=0 equation:


 3x+15x-72=0

We simplify the equation to the form, which is simple to understand 
3x+15x-72=0

We move all terms containing x to the left and all other terms to the right. 
+3x+15x=0+72

We simplify left and right side of the equation. 
+18x=+72

We divide both sides of the equation by 18 to get x. 
x=4

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