217k views
5 votes
Y=3x+17, 4x-3y=-26
Use substitution to solve the system

User Freshbm
by
4.7k points

2 Answers

2 votes
The answer is X=-5 and y=2
User Adrian Hoe
by
3.6k points
3 votes

Answer:

x=-5, y=2

Explanation:


y=3x+17\\\\4x-3y=-26

With substitution, you can replace y in the second equation with 3x+17, since you know they are equal.


4x-3(3x+17)=-26 \\\\4x-9x-51=-26\\\\-5x=25\\\\x=-5\\\\y=3(-5)+17=-15+17=2

Hope this helps!

User Mohammad Istanboli
by
4.9k points