Register
4x + 4y + 2z = 8 x - y -z = 0 4y - 2z = -15 x = 2, y = -2, z = 4; (2, -2,4) Is (2,-2,4) a solution of the system of equations? Yes or no?
25.5k views
1 vote
4x + 4y + 2z = 8

x - y -z = 0
4y - 2z = -15
x = 2, y = -2, z = 4; (2, -2,4)
Is (2,-2,4) a solution of the system of equations? Yes or no?

User Tirthraj Barot
by
5.9k points

1 Answer

4 votes
The answer is no, because the first two equations are right but the third equation equals -16 instead of -15. So the answer is no (2,-2,4) is not the solution to all the system of equations.
User Veton
by
6.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.3m questions

8.4m answers

Other Questions

What is the least common denominator of the four fractions 20 7/10 20 3/4 18 9/10 20 18/25
What is 0.12 expressed as a fraction in simplest form
Solve using square root or factoring method plz help!!!!.....must click on pic to see the whole problem
What is distributive property ?
What is the measure of xyz
Link Copied!