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
Serga [27]
3 years ago
11

Solve the system using elimination 3x+y=27 -3x+4y=-42

Mathematics
1 answer:
padilas [110]3 years ago
8 0

Hello :)

3x+y=27

-3x+4y= -42

+____________

(3x -3x) + (y+4y) = (27-42)

0 + 5y = -15

y = -3

Put "-3" for "y" in the system:

3x + y =27

3x -3=27

3x = 30

x = 10

Answer = x:10 y: -3

Have a nice day :)

You might be interested in
i am using my big brothers acount. i need help johnny got 10 apples and he had 10 dollars now he dosent have money. did he spend
Oxana [17]

Answer:

Yes. He spent 10 dollars.

Step-by-step explanation:

If he bought 10 apples, and he had 10 dollars, he would have no money left because each apple was 1 dollar.

hope this helps!

4 0
3 years ago
For the first part of the obstacle course, Helena needs to sprint as fast as she can to Checkpoint A, which is 5 units north of
andrew11 [14]

Answer:

If the four number sentences at the bottom are the choices for your answer the correct one would be choice A or 1.  

I hope this is what you meant if not I'll try to take my answer down and try to answer it again correctly!

5 0
2 years ago
******PLEASE HELP!!******
expeople1 [14]

Answer:

9^{4}

Step-by-step explanation:

9^-5 = 9^4  x  9^-9

4-9 = -5

7 0
3 years ago
I need help with the last question
umka2103 [35]

Answer: well next time gahni better count right and potentially yes it could effect it

Step-by-step explanation:

7 0
3 years ago
Alex and Micah scored a total of 40 points in the basketball game. Micah scored four more points than twice Alex's score. How ma
lisabon 2012 [21]

Answer: D

Step-by-step explanation:

 2x + (2x +4 ) =40

x= 9

2(9) +4 =22

6 0
3 years ago
Other questions:
  • Solve The Equation <br> 4x×9y=7<br> 4x-9y=9
    7·1 answer
  • 4. Find the distance between the two points. Round to the nearest tenth if necessary.
    9·1 answer
  • When c=3 and d=7<br> 21c + 2d - |-11|d
    14·1 answer
  • -2 (×-5) = 5 (-3×+4) +3 solve please
    11·2 answers
  • How. to know if your data is numerical or categorical​
    8·2 answers
  • - A teacher wanted to determine the effectiveness of two different learning tools—a computer program or a hands-on approach—for
    15·1 answer
  • F(x)=-x^2+3 find f(-2)
    15·1 answer
  • Classify each angle<br> Name Each Angle in Four Ways
    12·2 answers
  • Helpp please thanksss
    12·1 answer
  • Factor x^2−2x. Is this a special product?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!