Question
Asked Apr 14, 2019
4 views

Solve the system

5x-4y+6z=-25

9x+2y-3z=-68

3x+y=-28

(x,y,z)=

check_circle

Expert Answer

Step 1

The given equations are,

 

5x –4y +6z = – 25                                  ……(1).

9x + 2y – 3z = – 68                               …….(2).

3x + y = – 28                                          ……(3).

Step 2

Use the equations (1) and (2) to eliminate z as follows.

fullscreen
Step 3

Substitute x = –7 in (3) ...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Algebra