tayaross99 tayaross99
  • 03-05-2021
  • Mathematics
contestada

Solve the simultaneous equations 2x+3y=9 4x+y=13

Respuesta :

drmallery drmallery
  • 03-05-2021

Answer:

x=3, y=1

Step-by-step explanation:

2x+3y=9. Equation 1

4x+y=13   Equation 2

y=13-4x.  Modify equation 2 to isolate y

2x+3(13-4x)=9 subst value of y of equation 2 into equation 1

2x+39-12x=9 solve equation

-10x+39=9

-10x=-30

x=3

solve for y

2x+3y=9

2(3)+3y=9

6+3y=9

3y=3

y=1

Check answer:

4x+y=13

4(3)+1=13

13=13

Answer Link

Otras preguntas

Which of the following is true about taking care of garbage ? A. Garbage containers do not need to be cleaned out if you use plastic liners B. Garbage containe
Which consumes more energy, a 1.3 kw hair dryer used for 10 min or a 10 w night light left on for 24 hr?
name AND define the two ways to classify polynomials
What evidence would you select to refute Hoover's statement about the American economy? A) Hoover engaged in many unprecedented public works programs, including
What did Solomon ask for when god appear in his dream? The Bible story
Jeremiah built a box that was 5 inches long by 6 inches wide by 7 inches high .he started filling it up with 1 cube.he realized quickly that he did not have nea
what SD can friction do to moving objects
What are the disadvantages of a flatworms digestive system having only one opening?
what is the greatest amount of spinach she can buy
Which continents have land in both the Eastern and Western Hemispheres? Check all that apply. Which continents have land in both the Eastern and Western Hemisp