x+1+x-9=90

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Solution for x+1+x-9=90 equation: 



x+1+x-9=90

We move all terms to the left:

x+1+x-9-(90)=0

We add all the numbers together, and all the variables

2x-98=0

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

2x=98

x=98/2

x=49

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