How to find the values of c and d in the following equations:

c+2d=6

-3c-6d=-18

Thanks, Lucky

How to find the values of c and d in the following equations:

c+2d=6

-3c-6d=-18

Thanks, Lucky

Tutors, please sign in to answer this question.

Miami, FL

c+2d=6

-3c-6d=-18

-3c-6d=-18

to eliminate one variable we can multiply times 3 the first equation and add to the second equation

3c+6d = 18

-3c - 3d=-18

The two equations are the same thing and the system is undetermined.

The determinant of the system is Zero so the system is undetermined. This is a so called inconsistent system.

Romina A.

Knowledgeable tutor in Spanish, Biology, Anatomy & Physiology and Math

Harrison, NJ

5.0
(169 ratings)

Kimberly P.

Get Ready For Next Year With a Principal-Recommended Tutor!

Rego Park, NY

4.8
(28 ratings)

Nikunj P.

Math and Science Specialist, Over 14 Years of Educational Experience

Scarsdale, NY

4.9
(177 ratings)

- Algebra Help 945
- Algebra 4705
- Algebra 1 3838
- Math 8977
- Algebra Word Problem 2351
- Math Help 5008
- Algebra 2 3231
- Algebra Question 226
- Math Equations 929
- Mathematics 530