Solve by Any Method $a$ And $b$ Represent Nonzero Constants $\mathrm{ax}+\mathrm{by}=2$ $2 \mathrm{ax}+4 \mathrm{by}=1$

Multiple Choice

Solve by any method. Assume $a$ and $b$ represent nonzero constants.
- $\mathrm{ax}+\mathrm{by}=2$
$2 \mathrm{ax}+4 \mathrm{by}=1$

A) $\left\{\left\{\frac{7 b}{2},-\frac{3 a}{2}\right) \right\}$

B) $\left\{\left\{-\frac{3}{2 b}, \frac{7}{2 a}\right) \right\}$

C) $\left\{\left\{\left(\frac{7 a}{2},-\frac{3}{2 b}\right) \right\}\right.$

D) $\left\{\left\{\left(\frac{7}{2 a},-\frac{3}{2 b}\right) \right\}\right.$