1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
trapecia [35]
3 years ago
15

How do I solve this systems of three equations problem?

Mathematics
1 answer:
Serhud [2]3 years ago
3 0

Answer:

You have to eliminate one of the variables when the equations are added.

A) x + 2y + z = 10

B) 2x -y +3z = -5

C) 2x -3y -5z = 27

We mulutiply A) by 2 then add it to B and C

A) 2x + 4y + 2z = 20 and the sum =

6x = 42  Luckily, the "y" and "z" variables cancel out and we find:

x = 7  

Then we use x =7 in calcucating equation A) and B)

A) 2y + z = 3

B) -y + 3z = -19

THEN solve for y and z by eliminating variables.


Step-by-step explanation:


You might be interested in
What is th GCF of 21 and 18
ZanzabumX [31]

Answer:

The answer is 3.

Explanation:

Factors of 18:

1, 2, 3, 6, 9, 18.

Factors of 21:

1, 3, 7.

The highest number that both sets contain is 3, so the GCF will be 3.


5 0
3 years ago
Read 2 more answers
What is the length of one side of 400 sq in
RSB [31]

This is a square, and so all the sides will be the same measurements. Note that you are given an area, so you'll have to root the total area to get a side.

√400 = 20

One side's measurements is 20 in

hope this helps

7 0
3 years ago
Read 2 more answers
Triangle with a height of 25 feet and base of 12 feet. What is the area of the triangle?
Dafna1 [17]

Answer:

150 ft

Step-by-step explanation:

triangle area formula= (b*h)/2

25 time 12 is 300. divide 300 by 2 and get 150.

3 0
3 years ago
Read 2 more answers
A young women walked into a cafe and asked for a drink of water the man behind the counter suddenly pulled out a gun and pointed
dexar [7]

Did you write this??

Thank you for sharing

7 0
3 years ago
Is the line for the equation y = −8 horizontal or vertical? What is the slope of this line? Select the best answer.
Amanda [17]
The equation is only create a line on the coordinate itself . make a straight line on - 8 of y axis

so it is horizontal and there is no slope

the answer is a
7 0
3 years ago
Other questions:
  • The city of Raleigh has 10400 registered voters. There are two candidates for city council in an upcoming election: Brown and Fe
    8·1 answer
  • 3x^2+16x^2+x+7-10x^2+22+15x-6x
    12·1 answer
  • The price of a swimming pool
    10·1 answer
  • (4y a - 6x b )(4y a + 6x b )
    8·1 answer
  • What’s the value of c in the equation 7x+2y=48, when y=3
    7·1 answer
  • Someone please help ASAP will give brainliest
    11·1 answer
  • Dante's Mom wants to build a fence around their yard. Here are the measurements of the yard. What are the measurements of the mi
    12·1 answer
  • A construction company is hired to build a wheelchair ramp for a restaurant. The ramp connects the handicap parking space (point
    6·1 answer
  • What is the value of missing side a ?
    15·1 answer
  • The base of a triangle is 7 meters longer than the height of the triangle of the area of the triangle is 22 square meters what a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!