x-1+2x+1=4

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Solution for x-1+2x+1=4 equation: 



x-1+2x+1=4

We move all terms to the left:

x-1+2x+1-(4)=0

We add all the numbers together, and all the variables

3x-4=0

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

3x=4

x=4/3

x=1+1/3

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