Question

Solve this system of equations usingthe substitution method.y = 3x - 1=2x + 6 = y=([?], [])

Answer 1

Given:

Equations are y = 3x - 1 and 2x + 6 = y

Required:

Solve this system of equations using the substitution method.

Explanation:

We will proceed as:

$\begin{gathered} y=3x-1....(1) \\ 2x-y=-6.....(2) \end{gathered}$

Put equation (1) in eq. (2), we will get

$\begin{gathered} 2x-3x+1=-6 \\ -x=-7 \\ x=7 \end{gathered}$

and y = 3(7) - 1

y = 20

Answer:

Hence, x = 7 and y = 20.