vaniavidal666 vaniavidal666
  • 03-05-2019
  • Mathematics
contestada

Use substitution to solve the system of equations. 2x+4y=8 3x-5y=1

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 03-05-2019

ANSWER

The solution is (2,1)

EXPLANATION

The given equations are:

2x+4y=8...(1)

3x-5y=1...(2)

We make x the subject in the first equation to get:

2x=8-4y

This means that,

x=4-2y...(3)

Put equation (3) into equation (2)

3(4-2y)-5y=1

Expand:

12-6y-5y=1

-6y-5y=1-12

-11y=-11

y=1

Put y=1 into equation (3).

x=4-2(1)=2

The solution is (2,1)

Answer Link

Otras preguntas

given that Tn = -4n^2+56n-180 , determine the biggest numerical value of Tn​
Which lines support the theme that change and forgiveness can happen even at the end of life? Check all that apply. “In the course of their desolate wanderings
PLEASE ANSWER!! I don’t understand
What is the value of x? Enter your answer, as a decimal, in the box.
Slope intercept 6times+5y=15
try it, let's see can u do or not
Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 3 more than 3 times the number of marbles Mark has, how many doe
Freeee!!!!!! hope you Enjoy them
Every floor of a 20 storey building is 5m in high. If a lift moves 2m every second, how long will it take to move from 3rd floor to 15th floor?​
who got independent for Africa how??​