306,924 views
5 votes
5 votes
Help pls. Solve the system of linear equations by substitution.

Help pls. Solve the system of linear equations by substitution.-example-1
User Avinta
by
2.3k points

1 Answer

18 votes
18 votes

Answer:

(5, 3)

Explanation:


x = 17 - 4y \\ y = x - 2

Substitute x into y:


y = (17 - 4y) - 2 \\ y = 15 - 4y \\ y + 4y = 15 \\ 5y = 15 \\ y = 3

Substitute y into x:


y = x - 2 \\ 3 = x - 2 \\ 3 + 2 = x \\ x = 5

Therefore your answer is (5, 3).

User Vepzfe
by
2.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.