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
8090 [49]
3 years ago
7

Solve for x,y, and z

Mathematics
1 answer:
Lostsunrise [7]3 years ago
3 0
Equation 1)  3x + 2y - 5z = 3
Equation 2)  4x - 2y - 3z = -10
Equation 3)  5x - 2y - 2z = -11

Add equation 1 with equation 2.

Equation 4)  7x - 8z = 7

Then subtract equation 3 from equation 2.

Equation 5)  -x -z = 1

Multiply all of equation 5 with 7.

5)  -7x - 7z = 7
4)  7x - 8z = 7

Add equations together.

z = 14

Plug in 14 for z in equation 4.

7x - 8z = 7

7x - 8(14) = 7

7x - 112 = 7

7x = 119

x = 17

Plug in 17 for x in equation 1, and 14 for z.

1)  3x + 2y - 5z = 3

3(17) + 2y - 5(14) = 3

51 + 2y - 70 = 3

2y - 19 = 3

2y = 22

y = 11

So, x = 17, y = 11, and z = 14

~Hope I helped!~



You might be interested in
Pls help I’ll give 23 points
Andrew [12]

Answer:

  • $2594.07

Step-by-step explanation:

  • Principal P = $2250
  • Interest rate r = 2.4% = 0.024 PA compounded
  • Compound number n = 1 (once per year)
  • Time t = 6 years

<u>Future amount formula:</u>

  • F = P(1 + r/n)^(nt)

<u>Substitute given values:</u>

  • F = 2250(1 + 0.024)^6 = 2594.07
8 0
2 years ago
Are those expressions equivalent? Explain why or why not.
vova2212 [387]
42+35 is 77
7(6+5) is 77 so yes
Brainliest pls
5 0
3 years ago
What does a1 stand for?
Elena L [17]

Answer:

It stands for like top quality, the best of the best

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The Myers-Briggs test is organized into _____ sets of dichotomies which are further divided into _____ opposite characteristics.
Naddik [55]
4;2 is the answer to ur question
3 0
3 years ago
Find the volume of the triangular prism.
OleMash [197]
The answer is D because 3x3x4=36 ekekekekkeekkeke
4 0
2 years ago
Read 2 more answers
Other questions:
  • Fill in the table using this function rule
    11·1 answer
  • Hello there are 4 questions in this it will look like a lot but it is not and you don't have to answer all of it just look at th
    14·1 answer
  • Tính thể tích m³ hồ tròn: đường kính 1,2m; cao 1,2m?
    14·1 answer
  • Write a division equation and a multiplication equation to represent the problem.
    8·2 answers
  • The sales tax for an item was $26.40 and it cost $440 before tax.
    12·1 answer
  • I need help with this question !!​
    8·1 answer
  • (20x2-7x-3)-(9x2-12x-5)
    6·1 answer
  • Ethan and Evan are twins. They each deposit $3,000 into separate bank accounts. Their accounts each accrue interest annually. Ex
    15·1 answer
  • Is 26−−√ greater than, less than, or equal to four?
    8·1 answer
  • HELP PLS!!!!!!!!!!!!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!