2X-30+x+30=90

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Solution for 2X-30+x+30=90 equation: 



2X-30+X+30=90

We move all terms to the left:

2X-30+X+30-(90)=0

We add all the numbers together, and all the variables

3X-90=0

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

3X=90

X=90/3

X=30

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