Question

Solve the system y+2=4x and y =2

Answer 1

`\begin{gathered} \begin{cases}y+2=4x\text{ (1)} \\ y=2\text{ (2)}\end{cases} \\ Solv\text{ing x from (1)} \\ y+2=4x \\ x=(y+2)/(4),\text{ Using (2)} \\ \text{Using (2), y=2} \\ x=(2+2)/(4)=(4)/(4)=1 \\ x=1,\text{ therefore} \\ \text{The solution is x=1, y=2} \end{gathered}`