x-6+x+15=90

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Solution for x-6+x+15=90 equation: 



x-6+x+15=90

We move all terms to the left:

x-6+x+15-(90)=0

We add all the numbers together, and all the variables

2x-81=0

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

2x=81

x=81/2

x=40+1/2

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