x+2x-4=89

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Solution for x+2x-4=89 equation: 



x+2x-4=89

We move all terms to the left:

x+2x-4-(89)=0

We add all the numbers together, and all the variables

3x-93=0

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

3x=93

x=93/3

x=31

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