21x+13x=68

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Solution for 21x+13x=68 equation: 



21x+13x=68

We move all terms to the left:

21x+13x-(68)=0

We add all the numbers together, and all the variables

34x-68=0

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

34x=68

x=68/34

x=2

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