kaylagray2588
kaylagray2588 kaylagray2588
  • 03-05-2022
  • Mathematics
contestada

{4x+y=9 and 5x +2y=9
use substitution method to find all solutions of the system of equations

(X,y)=

Respuesta :

okikiolu3
okikiolu3 okikiolu3
  • 04-05-2022

Answer:

x=3,y=-3

Step-by-step explanation:

Isolate x for 4x +y=9: x=9-y/4

Substitute x = 9-y/4

[5 x 9-y/4+2y =9]

Isolate y for (45+3y/4)=9:

y=-3

For x= 9-y/4

Substitute y = -3

x= 9-(-3)/4

9-(-3)/4=3

X=3

The solutions to the system of equations are:

x=3 y= -3

Answer Link

Otras preguntas

how to do -7x-3x+2=8x-8
President Truman sought to support the power of unionized labor when he vetoed what bill?
"A pair of shoes that costs $40 was marked up by 25%. What was the markup and what is now the selling price. Show your work."
Regular aerobic exercise gives an individual more endurance" is a sentence that shows cause and effect. Which word indicates the cause? A. Regular B. Endurance
Which ordered pair is a solution for y=5x-3?
what is the simplest form of 24/126
During the middle ages, which event made european interested in asia
jefferson got a hit 30% of the 240 times he went to bat during the season write 30% as a reduced fraction and then find the number of hits he got during the sea
write 120% as a fraction.
Temperature has a(n) _____ effect on the pressure and volume of a gas. A. direct B. inverse C. positive D. negative