2x-21+6x=75

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Solution for 2x-21+6x=75 equation: 



2x-21+6x=75

We move all terms to the left:

2x-21+6x-(75)=0

We add all the numbers together, and all the variables

8x-96=0

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

8x=96

x=96/8

x=12

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