Solve for a
\left\{\begin{matrix}a=\frac{bc}{d}\text{, }&c\neq -\frac{9d}{4}\text{ and }b\neq 0\text{ and }d\neq 0\\a\neq 0\text{, }&b=0\text{ and }d=0\text{ and }c\neq 0\end{matrix}\right.
Solve for b
\left\{\begin{matrix}b=\frac{ad}{c}\text{, }&c\neq -\frac{9d}{4}\text{ and }a\neq 0\text{ and }c\neq 0\\b\neq 0\text{, }&a=0\text{ and }c=0\text{ and }d\neq 0\end{matrix}\right.
Quiz
Algebra
5 problems similar to:
\frac { 4 a - 9 b } { 4 a + 9 b } = \frac { 4 c - 9 d } { 4 c + 9 d }
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