hunniebear hunniebear
  • 11-05-2020
  • Mathematics
contestada

What is the solution to this system of equations?
X+ 2y = 4
| 2x-2y = 5
(3.-5)
(3.)
no solution
infinitely many solutions

Respuesta :

Chelboy
Chelboy Chelboy
  • 11-05-2020

Answer:x=3 y=1/2

Step-by-step explanation:

x+2y=4

2x-2y=5

Add both equations together

x+2x+2y-2y=4+5

3x+0=9

3x=9

Divide both sides by 3

3x/3=9/3

x=3

Substitute x=3 in x+2y=4

x+2y=4

3+2y=4

Collect like terms

2y=4-3

2y=1

Divide both sides by 2

2y/2=1/2

y=1/2

Answer Link

Otras preguntas

How is carbon within the lithosphere?
Glven the function, which statement is true? ​
Create an explicit formula to represent the number of bacteria in a petri dish, which is shown by the sequence {200, 120, 72, 43.2, 25.92, …}
Cual es la energía cinética de un cuerpo de 20kg que viaja a una velocidad de 1 m/s ?
I need help with this question I will give brainliest
¿Qué es el calentamiento global? What is global warming?
henry had charged 933 dollars to his credit card. Even after the cost of his next purchase, he was still under credit limit of 1500 dollars. Write a mathematica
I NEED TO DO EXAM TODAY ANSWER QUICK PLEASEPassage 1: The First Amendment and CensorshipBy Phillip JonesThe writing of the US Constitution spurred numerous deba
Select the common noun(s). Friendship means everything to Minerva McGonagall. Submit answer 0
How did the discovery of diamonds change britain's interest in south africa?