noradaugherty noradaugherty
  • 16-01-2020
  • Mathematics
contestada

Solve the system of equations: y=4x-3, y=-2x+9

Respuesta :

lordsonmyk
lordsonmyk lordsonmyk
  • 16-01-2020

Answer:

y= 5

x= 2

Step-by-step explanation:

y = 4x - 3 ... (1)

y= -2x +9.... (2)

Multiply equation (2) by 2

It becomes;

2y = -4x +18 ...(3)

Add equation (3) and (1)

It becomes;

3y = 15

y = 5.

Substitute y = 5 in equation (1)

It becomes;

5 = 4x -3

Collecting like terms:

4x = 5 + 3

4x = 8

x = 8/4

x = 2

Answer Link

Otras preguntas

1. How many joules of heat are necessary to melt 500 g of ice at its freezing point?
write -5 as a logarithim with a base of 4
If x=3, calculate the value of: X squared + 2x
What is the history of Trece Martires?do not copy​
Vosotros ____ el nombre de la película. O sabes sabéis séis
Why did Germany become involved in the Spanish civil war? essay
solve this problem pls ​
What do you think the cardinal is trying to communicate with its song?
how far does a 1.2g bullet with kinetic energy of 1.2 j go in 2 seconds ?​
A rectangular container that has a length of 30 cm, a width of 20 cm, and a height of 24 cm is filled with water to a depth of 15 cm. When an additional 6.5 lit