SOLUTION: Solve the system of equations by graphing. Then classify the system. 3x+ y=15 4x+5y=-13

Question 221279: Solve the system of equations by graphing. Then classify the system.
3x+ y=15
4x+5y=-13

Answer by drj(1380) (Show Source): You can put this solution on YOUR website!
Solve the system of equations by graphing. Then classify the system.

3x+ y=15
4x+5y=-13

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving 1*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=-9. Since , x=8.

Answer: .

The linear system of equations is independent and has a unique solution intersecting at a point (8,-9).

I hope the above steps were helpful.

For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Good luck in your studies!

Respectfully,
Dr J
RELATED QUESTIONS
solve the system of equations by graphing. then classify the system: 4x-y=10... (answered by stanbon)

Solve the system of equations by graphing. Then classify the system. y=-x-13... (answered by stanbon)

solve the system of equations by graphing. then classify the system x+y=13... (answered by rapaljer)

solve the system of equations by graphing. Then Classify the system. x+y=13 x-y=... (answered by drj)

x+y=13 x-y=-3 solve the system of equations by graphing then classify the... (answered by Alan3354)

Solve the system of equations by graphing. Then classify the system. 5u+v=2 y=-x-13... (answered by Fombitz)

solve the system of equations by graphing. then classify the system. 5x-y=13 and... (answered by Fombitz)

Solve the system of equation by graphing. Then classify the system as consistent or... (answered by jim_thompson5910)

Solve the system of the equations by graphing. Then classify the system. 3x-y=24... (answered by oberobic)