x-21+2x+15=90

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Solution for x-21+2x+15=90 equation: 



x-21+2x+15=90

We move all terms to the left:

x-21+2x+15-(90)=0

We add all the numbers together, and all the variables

3x-96=0

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

3x=96

x=96/3

x=32

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