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2\left(x+1\right)-\left(x-1\right)=1
Multiply both sides of the equation by 8, the least common multiple of 4,8.
2x+2-\left(x-1\right)=1
Use the distributive property to multiply 2 by x+1.
2x+2-x-\left(-1\right)=1
To find the opposite of x-1, find the opposite of each term.
2x+2-x+1=1
The opposite of -1 is 1.
x+2+1=1
Combine 2x and -x to get x.
x+3=1
Add 2 and 1 to get 3.
x=1-3
Subtract 3 from both sides.
x=-2
Subtract 3 from 1 to get -2.