Cometieron123456 Cometieron123456
  • 23-03-2020
  • Mathematics
contestada

3x+4y=18 , -2x+4y=18

Respuesta :

optimonium optimonium
  • 23-03-2020

Answer:

[tex]\boxed{x = 0}[/tex]

[tex]\boxed{y = 9/2}[/tex]

Step-by-step explanation:

[tex]\textbf{\textrm{1. Eliminate the 4 by making one equation negative}}[/tex]

-(3x + 4y = 18)

-3x - 4y = -18

-2x + 4y = 18

-5x = 0

x = 0

[tex]\textbf{\textrm{2. Plug X back into the equation to solve for y}}[/tex]

3(0) + 4y = 18

4y = 18

18/4 = y

y = 9/2

Answer Link

Otras preguntas

Your friend has not done well as she expected to do in her exams. She is upset and now blames the teacher for her performance.discuss with your partner what wou
Where is eygpt located
Where should a pronoun be placed?
The vast majority of new homes in the 1950s were built in the... a. Big cities b. Suburbs c. Small cities d. Rural areas
Candace is a confident, disciplined, motivated, hardworking team player. She pushes her teammates to perform to their full potential but guides them and does n
Use the distributive property to express the sum of 48+84 as a multiple of 2 numbers with no common factor.
General .... led the Allied troops in the North African campaign.
Marita orders 12 yards of material to make banners. If she needs 1 foot of fabric for each banner, how many banners can she make?
list the four freedoms of the first amendment
Rewrite the following equation so that y is a function of x. 2x + 18y = 36 All help appreciated! :)