Hi can you help me with an algebra assignment pleasy=-7x,y=4x+22 solve the system by substitution.

Tiamat asked Jul 27, 2023

52,549 views

31 votes

Tiamat asked Jul 27, 2023

2.8k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

9 votes

Given:

$\begin{gathered} y=-7x \\ y=4x+22 \end{gathered}$

Put y=-7x in second equation,

$\begin{gathered} y=4x+22 \\ -7x=4x+22 \\ -7x-4x=22 \\ -11x=22 \\ x=-(22)/(11) \\ x=-2 \end{gathered}$

Put the value of x in first equation,

Answer: x = -2, y = 14.

George Co answered Aug 2, 2023

2.8k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers