Solve for x
x=\frac{2}{3}\approx 0.666666667
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x+1+2x=3
Add 2x to both sides.
3x+1=3
Combine x and 2x to get 3x.
3x=3-1
Subtract 1 from both sides.
3x=2
Subtract 1 from 3 to get 2.
x=\frac{2}{3}
Divide both sides by 3.
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