fenetalemeshetandine fenetalemeshetandine
  • 25-02-2021
  • Mathematics
contestada

What is the solution set of the system {2x - 3y =19 and 7x +4y = -6?

Respuesta :

kayleeharper187
kayleeharper187 kayleeharper187
  • 25-02-2021
{ 2x-3y=19
{ 7x+4y=-6

{ 2x=19+3y
{ 7x=-6-4y

{ x=19/2+3/2y
{ x=-6/7-4/7y

19/2+3/2y=-6/7-4/7y
y=-5

x=-6/7-4/7(-5)
x=2

(x,y) = (2,-5)

Solution Check
{ 2 · 2-3(-5)=19
{ 7 · 2+4(-5)=-6

{ 19=19
{ -6=-6
Answer Link

Otras preguntas

what is a xylophone? need help pls
Summarize the way plants store extra sugar
jem boy wants to make his 8-meter square pool into a rectangular one by increasing its length by 2m and decreasing its width by 2m .jem boy asked your expertise
what is a subspecies?
6.___He journeyed to the court of the great Kublai Khan, returning to Europe after seventeen years.
jem boy wants to make his 8-meter square pool into a rectangular one by increasing its length by 2m and decreasing its width by 2m .jem boy asked your expertise
if a line passes through the point (1,9) and has a slope of 6 , write it as an equation
are cockroaches active during the day?
what is nationalism
Can anyone help me solve this algebra porblem? -4 2/3=2n/3+1/3+n/3 Negative four and two thirds equals two "n" over three plus one over three plus "n" over thre