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
Butoxors [25]
3 years ago
12

Solve the system of equations given below.

Mathematics
2 answers:
lbvjy [14]3 years ago
7 0

Answer:

B

Step-by-step explanation:

-5x = y - 5 (1)

-2y = -x - 21 (2)

Change x to the left hand side of equation (2)

x = 2y - 21 (3)

Multiply (1) by 2 times:

-10x = 2y - 10 (4)

Use (4) - (3)

-10x = 2y - 10

- x = 2y - 21

-11x = -10 + 21

-11 x = 11

x = -1

Apply x = -1 in (1)

-5*(-1) = y - 5

5 = y-5

y = 5+5

y = 10

So x = -1

y = 10

Hope this help you :3

Free_Kalibri [48]3 years ago
6 0
Hehe the answer is B (-1,10)
You might be interested in
Can the common ratio of geometric sequence be equal to 0?
NeTakaya

Answer:

No it cant

Step-by-step explanation:

it cant

8 0
3 years ago
How many 1/2 pound bags can fill 14 pounds
faltersainse [42]
It’s easy do 2 times 14 so it’s 28
4 0
3 years ago
Read 2 more answers
What's 99 multiplied by 9
Fiesta28 [93]
9x99= 891
9x9=81
9x90=810
5 0
3 years ago
Read 2 more answers
The table can be used to determine the solution of equations, 2x − 2y = 6 and 4x + 4y = 28. A table with 6 columns and 2 rows. T
Alexus [3.1K]

The solution is (5,2)

Step-by-step explanation:

From the third column the equation for sum of equivalent system is given as;

8x = 40

divide both sides by 8 to get value of x

8x/8 = 40/8

x=5

Using the value of x in the fifth column's first equation will be;

4x +4y =28

4(5) + 4y =28

20 +4y =28

4y= 28-20

4y=8

divide both sides by 4 to get y

4y/4 =8/4

y=2

The solution is x=5 and y=2 written as (5,2)

Learn More

Solving simultaneous equations : brainly.com/question/12647791

Keywords: table, solution, column, original system

#LearnwithBrainly

8 0
3 years ago
Read 2 more answers
There are 6 black socks and 4 white socks in a drawer. If one sock is taken out without
miss Akunina [59]

Answer:

60 percent

Step-by-step explanation:

6 black socks, 4 white socks, 10 socks altogether, 60 percent of the socks are black, so is the chance of picking both black socks

6 0
3 years ago
Other questions:
  • Simplify (x − 4)(x2 − 2x − 3).
    14·2 answers
  • What's 2314572763 7156134563.
    13·1 answer
  • Jerome made P points in the game . Harold made 11 fewer points than Jerome . How many points did Harold make in the games in ter
    14·2 answers
  • N experiment was conducted to test the effect of a new stain remover. Twenty stains were treated with stain remover A and stain
    11·1 answer
  • I need help <br><br> Solve for X when:2X=8
    10·1 answer
  • Assume f(x) = ax^2+ bx + c Which one is true? f is a parabola that opens sideways to the right. f is a parabola that opens sidew
    7·1 answer
  • A chemist is conducting an experiment which involves a certain chemical reaction. He begins the experiment with 666 milliliters
    15·1 answer
  • Solve the equation for x.
    8·1 answer
  • QUETSION 6 PLS HELP MEE
    9·1 answer
  • 5² + 12² =<br> 64a3³<br> Work out the value of a.<br> Your final line should say, a =
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!