Question

Use the x- value you found in the last question which was x=3 to find the numerical of y

Answer 1

If we already know one variable, then we can replace this value with one equation:

Let us choose the first equation:

`2x+y=5`

Replace using x=3:

`2(3)+y=5`

Solve for y:

`\begin{gathered} 6+y=5 \\ y=5-6 \\ y=-1 \end{gathered}`

Hence, the value of y is -1.