alexiakou alexiakou
  • 01-04-2020
  • Mathematics
contestada

2x + 4y = 1
3x - 5y = 7
solve the simultaneous equations x

Respuesta :

dannielle
dannielle dannielle
  • 01-04-2020

Answer:

(x,y)=(3/2, -1/2)

Step-by-step explanation:

2x+4y=1  /*3

3x-5y=7  /*(-2)

6x+12y=3

-6x+10y=-14

...........................

/      22y=-11

      y= -11/22

     y= -1/2

2x+4*(-1/2)=1

2x-2=1

+2     +2

2x=3

x=3/2

so the solutionis (x,y)=(3/2, -1/2)

Answer Link

Otras preguntas

how to write 9/7 into simplest form
What job employed the majority of people in egypt?
Please help An electronics company used a pipe that was 100 ft long and had a radius of 10 ft. Inside the pipe was a smaller cylindrical tube, for wires, that h
Which of the following questions might someone who is going through a crisis ask himself? (8 points) Choose one answer. a. What will I decide? b. How can I a
What is meant by the phrase "In 1900 Europeans believed the world was their oyster?
what is three fiths of 45
A cone and a cylinder have congruent height and bases. The volume of the cone is 18. What is the volume of the cylinder? Explain please and thank you!
What is 0.625 as a percent
Which was necessary in completing and adopting the U.S. Constitution? A. compromises on many issues B. lessons on democratic government C. threats to states
Erika has 3 pieces of ribbon. each piece is 25 yards long she needs to cut pieces that are 22 inches long . What is the greatest number of 22-inch pieces that s