3x+21+6x-60=90

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Solution for 3x+21+6x-60=90 equation: 



3x+21+6x-60=90

We move all terms to the left:

3x+21+6x-60-(90)=0

We add all the numbers together, and all the variables

9x-129=0

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

9x=129

x=129/9

x=14+1/3

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