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
Genrish500 [490]
2 years ago
9

7x + 4y = -3 -7x - 5y = 9 How do I solve using elimination

Mathematics
1 answer:
mel-nik [20]2 years ago
5 0

Answer:

X=3, y=-6

Step-by-step explanation:

7x+4y=-3 equation 1

-7x-5y=9 equation 2

     -y=6. Add above two equations    

      Y=-6

solve for x by inputting y value into either equation.

7x+4(-6)=-3

7x-24=-3

7x=21

x=3

check answer by inputting x and y values into either equation

-7x-5y=9

-7(3)-5(-6)=9

–21+30=9

9=9

You might be interested in
Select the correct answer.<br> On the number line , which point is closest to the n?
Paraphin [41]

Answer:

The answer is C

4 0
3 years ago
Read 2 more answers
Austin plans to watch 2 movies each month. Write an equation to represent the total number of movies that he will watch in month
DerKrebs [107]
X = m x 2. X representing amount of movies m being how many months.
3 0
2 years ago
PLEASE HELPPPP THIS ISNON MY QUIZ
Bess [88]
The answer is d. i hope this helps!
6 0
3 years ago
Can you find the slope for me, please?
shusha [124]
The slope is -3/2

Use the two ordered pairs (-2,0) and (0,-3) and do y2-y1/x2-x1

-3-0/0+2= -3/2
3 0
2 years ago
Read 2 more answers
What is an equation of the line that passes through the point (-4,3) and has a slope of -1?
vlabodo [156]
Y=mx+b
plug in the point
3=-1*-4+b
3=4+b
b=-1
y=-1x-1
8 0
3 years ago
Other questions:
  • What is the value of fraction 1 over 3x3 + 5.4y, when x = 3 and y = 2?
    9·1 answer
  • A contractor has found that her cost for a certain construction job is subject to random variation. She believes its actual valu
    6·1 answer
  • A store sells small notebook for $7 and large notebook for $10. If a student buys 6 nb and spends $54, how many of each size did
    8·1 answer
  • What is the solution to this system of equations?
    5·1 answer
  • Angelina factored (x - 4)8 and wrote that it was equal to (x2 - 42)2(x2 + 42). Use complete sentences to explain how you could c
    14·2 answers
  • What is half of 1 and 1/4 cups?
    14·1 answer
  • Loan amount = $10,000 Monthly payments = $258.50 Time of loan contract = 5 years True annual interest rate (to the nearest tenth
    12·2 answers
  • If g(x)=1-3/4x find the values of g(0), and -5·g(4)-1
    10·1 answer
  • Describe the graph of the line y = 15
    5·1 answer
  • Which statement is true?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!