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
Karolina [17]
2 years ago
14

Solve the simultaneous equations

Mathematics
2 answers:
almond37 [142]2 years ago
8 0

Answer:

x = -1, y = 2

Step-by-step explanation:

2y - 5x = 9

4y + 3x = 5

eliminate one of the variables by multiplying the equations and then adding them together.

3(2y - 5x = 9)

5(4y + 3x = 5)

6y - 15x = 27

20y + 15x = 25

26y = 52

y = 2

now input the value of y into one of the original equations to find x.

8 + 3x = 5

8-5 = 3

x = -1

NeTakaya2 years ago
4 0

Answer:

y = 2, x = -1

Step-by-step explanation:

2y - 5x = 9

2y = 9+5x

y = (9+5x) /2

4y + 3x = 5

4((9+5x) /2) + 3x = 5

13x + 18 = 5

13x = -13

x = -1

y = (9+5x) /2

y = (9+5(-1)) /2

y = 2

You might be interested in
He;lp The formula for the area of a circle is A = πr2, where A = area and r = radius.
kogti [31]

Answer:

5

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Please help
Slav-nsk [51]

Answer:

8x+12

Step-by-step explanation:

Remember that perimeter is all the sides combined. A rectangle has the same length and width for both sides.  

P=2l+2w

P=2(4x-6)+2(12)

P=8x-12+24

P=8x+12

8 0
3 years ago
Read 2 more answers
Sarah has 3/14 pounds of chocolate chips to use in her cookies. It takes 1/8 pound of chocolate chips to make one batch of choco
photoshop1234 [79]

Answer:

5/56

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
The currency in Sweden is the kroner. The exchange rate is approximately $1 for 7 Kroner. At this rate how many kroner would you
solmaris [256]
14 kroner because 7×2 is 14 and the 2 if from the $2
3 0
3 years ago
Read 2 more answers
Lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll
Hatshy [7]
I can’t even see da the dawn question LOL
4 0
2 years ago
Other questions:
  • 1/4 x 1/4 x 1/4 x 1/4
    7·1 answer
  • 9 meters of gold wire. How long is the wire in millimeters?
    12·2 answers
  • Landon and Keira want to make enough salsa to fill two of the bowls they bought. One bowl holds 3 pints, and the other bowl hold
    13·2 answers
  • Which calculations perform on the calculator will yelled in answer that is approximately the same as 76 ÷ 19/25? Check all that
    14·1 answer
  • Help on math please?
    12·2 answers
  • George sells flowers for $12 a bundle and charges a $15 delivery fee. Sam buys 6
    11·1 answer
  • Geometry help please! Which rule explains why these triangles are scalene in both of these problems? A. SSS B. SAS C. AA D. None
    8·1 answer
  • Use the drop-down menus to locate integers on the number line.
    14·2 answers
  • What is the value of x in 5^x+2=5^9
    13·1 answer
  • Which fraction has a terminating decimal as its decimal expansion ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!