13x+7x=72

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Solution for 13x+7x=72 equation: 



13x+7x=72

We move all terms to the left:

13x+7x-(72)=0

We add all the numbers together, and all the variables

20x-72=0

We move all terms containing x to the left, all other terms to the right

20x=72

x=72/20

x=3+3/5

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