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

1. Cam Newton can sprint 40 meters in 5.79 seconds! How fast can he run?
nucleotides are the basic unit of which macromolecules
How do I solve this
There are 142 people going to the wedding reception. there will be 6 to a table How many tables needed?
A factory which crude oil is heated and separated into fuels and other products
The temperature scale that starts with absolute zero is the ___ scale
Which of the following happens during cell division? Question 13 options: The cell's volume increases. It becomes more difficult for the cell to get rid of wast
in what types of work environment do allied health professionals work
Divide 3,724 ÷ 6. What is the remainder? The remainder is?
was phenylthiourea a competitive inhibitor or a noncompetitive inhibitor?