Question

Solve the following systems of equations:

$$\begin{gathered} \frac{x}{7}+\frac{y}{3}=5 \\ \frac{x}{2}-\frac{y}{9}=6 \end{gathered}$$

Answer 1

The given equations are:

…

…

Multiply equation by and add both equations we get

Put the value of in equation we get

Hence the value of and .