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
Dominik [7]
2 years ago
14

3x+2y= -19 solve by elimination of addition -3x-5y= 25

Mathematics
2 answers:
tensa zangetsu [6.8K]2 years ago
8 0

Answer:

x=-5, y=-2

Step-by-step explanation:

3x+2y= -19  

-3x-5y= 25

Add the two equations together

3x+2y= -19  

-3x-5y= 25

------------------

0x -3y = 6

Divide each side by -3

-3y/-3 = 6/-3

y = -2

Now find x

3x+2y = -19

3x +2(-2) =-19

3x-4 = -19

Add 4 to each side

3x -4+4 = -19+4

3x= -15

divide by 3

3x/3 = -15/3

x = -5

solong [7]2 years ago
5 0

Answer:

x = -5, y = -2

Step-by-step explanation:

3x + 2y = -19

-3x - 5y = 25

Add both equation together.

  • 3x + 2y = -19
  • <u>+ -3x - 5y = 25</u>
  • <u> 0 x -3y = 6</u>
  • -3y = 6

Divide each side by -3.

  • -3y/-3 = 6/-3
  • y = -2

Now, find x.

Substitute the value of y into the equation 3x + 2y = -19

  • 3x + 2( -2 ) = -19
  • 3x <u>- 4</u> = - 19

Move the constant to the right hand side and change their sign.

  • 3x = -19 + 4
  • 3x = -15

Divide both side by 3.

  • 3x / 3 = -15 / 3
  • x = -5

Therefore, x = -5 and y = -2

You might be interested in
How do you solve 8x-43?
barxatty [35]

Answer:

-5

Step-by-step explanation:bro all u have to do is divide 8 by -43

3 0
3 years ago
The question is in the photo
valina [46]
The answers are B and C because anything in parentheses has to do with vertical change, while outside of the parentheses is horizontal
6 0
3 years ago
Read 2 more answers
Determine the inequality signs on a graph
TiliK225 [7]

Answer:

y = x^2

theres nothing shaded so its not an inequality.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Theo budgets $154 for karate classes. He buys a karate uniform, called a dogi, for $12. If it costs $8 to attend each karate cla
devlian [24]

Answer- 1234

Step-by-step explanation:

sorry

8 0
2 years ago
Read 2 more answers
Evaluate 5x3 - 21 + 7 when x = -2.
Sliva [168]

Answer:

26

Step-by-step explanation:

5x³ - 21 + 7

x = 2

then:

5x³ - 14

5*2³ -14

5*8 - 14

40 - 14

26

8 0
3 years ago
Read 2 more answers
Other questions:
  • Nick is now seven times as old as harry. In 6 years , nick will be five times as old as harry. How old will harry be in 6 years?
    12·2 answers
  • Why do have to ignore the absolute value sign while solving differential equation?
    13·1 answer
  • Jennifer and Jessica come up with different answers to the same problem...
    7·1 answer
  • Linda opened a savings account with $450. She saves $225 per month. Joe opened his savings account the same month with $750. He
    10·1 answer
  • The Highland Cafeteria offers a lunch combination meal which includes an entree and a side order. Choices for entrees are chicke
    5·1 answer
  • Can someone please help 4x + 2x + 1 = 2x - x + 21
    12·1 answer
  • Which method is best to use to solve the equation 4x2−29=0?(1 point)
    5·2 answers
  • Please help! I will mark as brainliest. &lt;3
    9·2 answers
  • In the equation 2x + 3y = 19, what is the constant?
    8·1 answer
  • Find a solution to the inequality x &gt; 4.<br> A. 8<br> B. 3<br> C. 4<br> D. 0
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!