Question

4 What is the y value of the solution?y=2x+1 y=4x-1

Answer 1

`\begin{gathered} \begin{bmatrix}y=2x+1 \\ y=4x-1\end{bmatrix} \\ 4x-1=2x+1 \\ 4x-1+1=2x+1+1 \\ 4x=2x+2 \\ 4x-2x=2x+2-2x \\ 2x=2 \\ (2x)/(2)=(2)/(2) \\ x=1 \end{gathered}`

then solve for y

`y=2x+1=2(1)+1=2+1=3`

answer: y = 3