Solve for y
y=-\frac{1}{3}\approx -0.333333333
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y=\frac{3}{7}\left(-\frac{7}{9}\right)
Multiply both sides by -\frac{7}{9}, the reciprocal of -\frac{9}{7}.
y=\frac{3\left(-7\right)}{7\times 9}
Multiply \frac{3}{7} times -\frac{7}{9} by multiplying numerator times numerator and denominator times denominator.
y=\frac{-21}{63}
Do the multiplications in the fraction \frac{3\left(-7\right)}{7\times 9}.
y=-\frac{1}{3}
Reduce the fraction \frac{-21}{63} to lowest terms by extracting and canceling out 21.
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