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
strojnjashka [21]
3 years ago
6

What is the solution to the system of equations?

Mathematics
1 answer:
o-na [289]3 years ago
5 0
The answer to the question

You might be interested in
Solve the following 3 × 3 system. Enter the coordinates of the solution below.
ICE Princess25 [194]

Step-by-step explanation:

2x - 3y - 2z = 4

[2] x + 3y + 2z = -7

[3] -4x - 4y - 2z = 10

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = -3y - 2z - 7

// Plug this in for variable x in equation [1]

[1] 2•(-3y-2z-7) - 3y - 2z = 4

[1] - 9y - 6z = 18

// Plug this in for variable x in equation [3]

[3] -4•(-3y-2z-7) - 4y - 2z = 10

[3] 8y + 6z = -18

// Solve equation [3] for the variable z

[3] 6z = -8y - 18

[3] z = -4y/3 - 3

// Plug this in for variable z in equation [1]

[1] - 9y - 6•(-4y/3-3) = 18

[1] - y = 0

// Solve equation [1] for the variable y

[1] y = 0

// By now we know this much :

x = -3y-2z-7

y = 0

z = -4y/3-3

// Use the y value to solve for z

z = -(4/3)(0)-3 = -3

// Use the y and z values to solve for x

x = -3(0)-2(-3)-7 = -1

Solution :

{x,y,z} = {-1,0,-3}

6 0
3 years ago
How many pairs of parallel sides does the trapezoid below have
Nonamiya [84]
It has 1 pair of parallel sides.
4 0
3 years ago
In 4 hours you hike 10 miles which unit rate describes your speed on the hike 5 miles per hour 2.5 miles per hr 4/10 miles per h
Vikentia [17]
2.5 miles per hour because you have to divide to know per hour.
10/4=2.5
Done :)
4 0
3 years ago
Which is the correct operation for 45-3x5
Sliva [168]
You want to use PEMDAS for this.
<em>P</em>= arenthesis ( )
<em>E</em>= xponents a²
<em>M</em>= ultiply ×
<em>D</em>= ivide ÷
<em>A</em>= dd +
<em>S</em>= ubtract -

What you want to do is go in order and ask yourself as you go.
Are there any <u><em>Parenthesis</em></u>? <em>No
</em>Are there any <u><em>Exponents</em></u><em />? <em>No</em>
Is there any <em /><u><em>Multiplication</em></u><em />? <em>Yes
</em>
<em />Is there any <em><u>Division</u></em>? <em>No
</em>
<em />Is there any <em><u>Addition</u></em>? <em>No
</em>
<em />Is there any <em><u>Subtraction</u></em><u />? <em>Yes</em><em>
</em>
<em />Thats when you stop and you multiply what you have in the PEMDAS. Top to bottom. 3x5 which gives you 15. Now you equation is 45-15. Thats when you subtract and you get your answer which is 30.
6 0
3 years ago
Help if you can, thanks.
Leya [2.2K]

Answer:

what question baby girl

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Gabriella makes blueberry pancakez at her bakery every Tuesday and thursday.the recipe calls for the ratios of ingredients shown
    12·1 answer
  • What would I use to solve this question and what did she do wrong
    15·1 answer
  • The vector u = (2700, 3700) gives the number of units of two models of laptops produced by a company. The vector v = (1900, 950)
    14·1 answer
  • Question 10: A triangle has two sides that are 10 inches and 15 inches in
    13·2 answers
  • Joe's bank account decreases by $1.50
    5·2 answers
  • A combined total of 39000 is invested in two bonds that pay 5% and 6.5% simple interest. The annual interest is 235500 how much
    6·1 answer
  • Pls answer my question from the above picture
    11·2 answers
  • Which ordered pair is a solution? Select all that apply
    13·1 answer
  • PLEASE HELP I’LL GIVE BRAINLIST!!!!!!!!
    10·1 answer
  • -11m + 5(17+8m)<br> 6( -5p - 7)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!