2x+x-1=7

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Solution for 2x+x-1=7 equation: 



2x+x-1=7

We move all terms to the left:

2x+x-1-(7)=0

We add all the numbers together, and all the variables

3x-8=0

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

3x=8

x=8/3

x=2+2/3

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