haileym368 haileym368
  • 02-06-2021
  • Mathematics
contestada

3x+4y=−2. 2x−4y=−8
Select the statement that correctly describes the solution to this system of equations.

3x4y2 2x4y8 Select the statement that correctly describes the solution to this system of equations class=

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-06-2021

Answer:

One solution at (-2,1)

Step-by-step explanation:

3x+4y=−2.

2x−4y=−8

Add the two equations together

3x+4y=−2

2x−4y=−8

------------------------

5x +0y = -10

Divide by 5

5x/5 = -10/5

x=-2

Now find y

2x-4y = -8

2*-2 -4y = -8

-4-4y = -8

Add 4 to each side

-4+4 -4y = -8+4

-4y = -4

Divide by -4

y = 1

Answer Link

Otras preguntas

Who holds the power in a unitary system of government?
La (1) de Suramérica cuenta con dos hombres muy importantes: Simón Bolívar y José de San Martín. La lucha de ambos tuvo como resultado la (2) de varios países l
How do you prepare for a group discussion?
What is an example of totalitarianism today?
What is national debt
The farmer grows a corn crop from hybrid seed and then the farmer gathers and plant some of the seeds from the hybrid corn plant how will the new corn crop comp
What did Jim sell to get the combs in the Gift of Magi?
A newspaper conducts a poll online to determine what proportion of voters approve of the proposed tax increase. In order to participate, people need to log onto
What is 4 times the power of 4?
What are three benefits of an influenza vaccination?