khushi75
khushi75 khushi75
  • 15-07-2019
  • Mathematics
contestada

y= -3x+5,5x-4y=-3 solving system of equations by substitution​

Respuesta :

mahamahmood95
mahamahmood95 mahamahmood95
  • 15-07-2019

Step-by-step explanation:

5x-4y=-3

y=5x+3/4--(1)

y=-3x+5--(2)

compare the two equations

5x+3/4=-3x+5

5x+3=4(-3x+5)

5x+3=-12x+20

now add 12x on both sides

17x+3=20

now subtract 3 from both sides

17x=17

now divide 17 from both sides

x=1

plug this value of x on any one of the above 2 equation I am using (1)

y=5(1)+3/4

y=5+3/4

y=8/4

y=2

Answer Link

Otras preguntas

Zalmon walks three fourhs of a mile in three tenths of an hour. what is his speed in miles per hour?
What professions do the members of the upper class hold? any a answers
What is 2 49/100 as a decimal number?
One positive integer is 3 less than twice another. the sum of their squares is 117 . find the integers
Calculate the average speed (in km/hr)of charlie who runs to the store 4km away in 30 minutes?
Does the world turn slowly.
Please, help. Find the value of the expression.
notification is considered a type of literature because
Jerry's basketball team makes 40 baskets for a total of 92 points in a basketball game. some of the baskets are worth 2 points, and some are worth 3 points. how
What is a drinking goblet?