Solve for x
x=\frac{2}{21}\approx 0.095238095
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x=-\frac{1}{3}+\frac{3}{7}
Add \frac{3}{7} to both sides.
x=-\frac{7}{21}+\frac{9}{21}
Least common multiple of 3 and 7 is 21. Convert -\frac{1}{3} and \frac{3}{7} to fractions with denominator 21.
x=\frac{-7+9}{21}
Since -\frac{7}{21} and \frac{9}{21} have the same denominator, add them by adding their numerators.
x=\frac{2}{21}
Add -7 and 9 to get 2.
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