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
Anna71 [15]
3 years ago
12

(2x+y=-2 5x + 3y = -8 Solve by elimination

Mathematics
1 answer:
Effectus [21]3 years ago
8 0

Answer:

y = -6, x =2

Step-by-step explanation:

To solve by elimination, you have to line both equations up together. Then, you multiply both equations until one variable is removed.

2x+y = -2

5x + 3y = - 8

There are many different ways to solve an elimination problem, but generally you should look for the simplest route. Here, I would multiply the top equation by -3.

-6x -3y = 6

5x +3y = -8

Imagine you are adding the two equations together. You end up with

-x = -2

Then solve for x. In this situation, it is fairly simple. Take out a factor of -1.

x = 2

Finally, choose one of your beginning equations and plug your new-found x value back into the equation.

2(2) +y = -2

4 + y = -2

y = -6

You might be interested in
If the ratio of children to adults is 2:9 and there are 70 children at an arts festival, how many adults are in attendance?
nordsb [41]

Answer:

315

Step-by-step explanation:

If 70 children is 2 parts, one part is 35

35*9 is 315

6 0
2 years ago
Read 2 more answers
What is the expanded form of the expression -1/7 (y-x)
rodikova [14]

Answer:

-1/7 y + 1/7 x

Step-by-step explanation:

Can also be written as

1/7 x - 1/7 y

3 0
3 years ago
59.952 nearest tenth
Aleonysh [2.5K]
59.952 in the nearest tenth is 60
5 0
2 years ago
Read 2 more answers
Solve the inequality –3(r – 5) + 7 > 28.
docker41 [41]

Answer: r<-2

Step-by-step explanation:

-3(r-5)+7>28

-3(r-5)+7-7>28-7

-3(r-5)>21

3(r-5)/3 < -21/3

r-5<-7

r-5+5<-7+5

r<-2

5 0
3 years ago
If five quarts of paint are needed for 250 square-feet of room, 19 quarts of paint will cover how many square feet of room?
Allushta [10]

Answer:

check the attachments for the solution

6 0
2 years ago
Other questions:
  • 8................................
    15·1 answer
  • [7.07] Choose the correct product of (6x + 2)2.
    6·2 answers
  • Someone help me please
    8·1 answer
  • Find the distance between the two points rounding to the nearest tenth (if necessary).
    13·2 answers
  • A player on the school baseball team reaches first base 3/10 of the time he is at-bat. Out of 80 times at bat, about how many ti
    13·1 answer
  • Evauate 15 divide by r minus 1 when r = 5
    11·2 answers
  • What’s the answer 7 x (1 / 7) / 3 x 3
    11·1 answer
  • Can you help with these two? And can you explain how to do these?
    5·1 answer
  • PLEASE HELP!! THIS IS MY LAST QUESTION!! WILL GIVE BRAIN!!
    13·1 answer
  • I need some help to classify this triangle pls
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!