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

Find the product: (i) (5 – 2x) (3 + x)​
What term best refers to the collective thinking of certain people? ethnic O culture globalization cuisine
what are some of the nicknames that the American people called Albert Einstein
How do “The Swan” and “Spanish Dancer” relate to the object poem???? PLEASE HELP
Please help! This is due at midnight and i still have 2 more parts!
guys help help help quick
18. Confucius spent his life A) among missionaries in the West B) working as an artist C) serving in the Chinese military service D) dedicated to education and
Someone help me with this
Brainliest, Use the area model to multiply:A) 2g - 3B) -gC) -99g - 54D) 45g
You are wanting a new pair of shoes. The shoes cost $70 BEFORE taxes. The sales tax on these shoes is 8%. How much money are these shoes going to cost?