Solve for a
a=-\frac{1}{3}\approx -0.333333333
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a=\frac{3}{-9}
Divide both sides by -9.
a=-\frac{1}{3}
Reduce the fraction \frac{3}{-9} to lowest terms by extracting and canceling out 3.
Examples
Quadratic equation
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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