X-10+3x=90

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Solution for X-10+3x=90 equation: 



X-10+3X=90

We move all terms to the left:

X-10+3X-(90)=0

We add all the numbers together, and all the variables

4X-100=0

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

4X=100

X=100/4

X=25

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