cassirearventhena cassirearventhena
  • 15-08-2021
  • Mathematics
contestada

Solve the system of linear questions by substitution

-3x + y = 1
4x + y = 8

Respuesta :

ghaithgh
ghaithgh ghaithgh
  • 15-08-2021

Answer:

–3x + y =1

y= 1 +3x

4x + y =8 —> 4x + ( 1 + 3x ) = 8

7x + 1 = 8 —> 7x = 8 – 1 —> 7x = 7

x = 7/7 —> x = 1

y= 1 + 3x —> y = 1 + 3 (1) —> y = 1+ 3

y= 4

(x , y ) —> ( 1 , 4 )

I hope I helped you^_^

Answer Link

Otras preguntas

need help ASAP please I am stuck!
Most of the earth's surface land is required to produce enough food for the population. True False
Using 8, 11, 9, 1, and 8 create a problem in which the answer equals 2. You may use operations more than once.
Help answer question about triangles!
How do health maintenance organizations (HMOs) and preferred provider organizations (PPOs) differ? A. HMOs provide health insurance for older adults; PPOs p
ALL MY POINTS Read the line from "In Just." whistles far and wee Which best explains how the structure of this line contributes to the structure of th
Finding an equation in point slope form of the lines through point P(2,0) that are a) parallel to, and b) perpendicular to the line x+2y=3
PLS HELP The perimeter of the rectangle below is 304ft. What is the value of a
What has the lowest risk of getting cancer, heart bypass surgery or hormone therapy
An observer spots a plane flying at a 42 degree angle to his horizontal line of sight. If the plane is flying at an altitude of 15,000 ft, what is the distance