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

The solution to the equation is x =
A chemist prepares a solution of copper) sulfate (cuso4)by weighing out 29.9 g of copper ) sulfate into a 150 into a 150.mLvolumetric flask and filling the flas
Mendel's principles of heredity apply to many organisms, including animals. For example, in guinea pigs, black fur (B) is dominant over white fur (b). What are
PLEASE HELP ME QUICK
If it takes 68 seconds for you to walk up a flight of stairs from the first floor to the third-floor how long would it take you to walk from the first floor to
How does Old Major intend for his language to affect his audience? AIOR'S
List three reasons why England and France would have wanted to find a northwestern route to asia
Find the product: (0.061)·(0.43)
Mention and explain 5 solutions to marital challenges​
In a speech delivered in 1883, social reformer and writer Frederick Douglass asserted that “No man can put a chain about the ankle of his fellow man, without at