56.7k views
1 vote
Use substitution to solve the linear system of equations.

5x-y=15
-10x+2y=-30
no solution(-15, -6)(-3,10)infinitely many solutions

2 Answers

3 votes

Answer:

infinitely many solutions

Explanation:

User Mitul
by
7.7k points
2 votes
5x - y = 15 (1)
-10x+2y=-30 (2)

multiply (1) by 2

10x - 2y = 30
-10x + 2y = -30 (2)
---------------------------add
0 = 0

answer
infinitely many solutions

User Mattravel
by
7.7k points