3x+20x=90

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Solution for 3x+20x=90 equation: 



3x+20x=90

We move all terms to the left:

3x+20x-(90)=0

We add all the numbers together, and all the variables

23x-90=0

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

23x=90

x=90/23

x=3+21/23

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