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3x^{2}+2x-1+2x=1+3x^{2}
Add 2x to both sides.
3x^{2}+4x-1=1+3x^{2}
Combine 2x and 2x to get 4x.
3x^{2}+4x-1-3x^{2}=1
Subtract 3x^{2} from both sides.
4x-1=1
Combine 3x^{2} and -3x^{2} to get 0.
4x=1+1
Add 1 to both sides.
4x=2
Add 1 and 1 to get 2.
x=\frac{2}{4}
Divide both sides by 4.
x=\frac{1}{2}
Reduce the fraction \frac{2}{4} to lowest terms by extracting and canceling out 2.