Solve for x
x=-\frac{1}{3}\approx -0.333333333
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3x+1=0
Combine x and 2x to get 3x.
3x=-1
Subtract 1 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-1}{3}
Divide both sides by 3.
x=-\frac{1}{3}
Fraction \frac{-1}{3} can be rewritten as -\frac{1}{3} by extracting the negative sign.
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