raut86719
raut86719 raut86719
  • 04-03-2021
  • Mathematics
contestada

finds the value of x and Y.
2x+3y=5
X-2y=-1​

Respuesta :

ncalalwazi89
ncalalwazi89 ncalalwazi89
  • 04-03-2021

Answer:

x=1

y=1

Step-by-step explanation:

2x+3y=5.........eq1

x-2y=-1........eq2

therefore: x=-1+2y

Subt. eq 3 into eq2

2x+3y=5

2(-1+2y) +3y=5

-2+4y+3y=5

7y=5+2

7y/7=7/7

y=1

therefore: Subt. y=1 into eq2

x-2y=-1

x-2(1)=-1

x-2=-1

x=-1+2

x=1

Answer Link

Otras preguntas

What is the complete factorization of the polynomial below? X^3+3x^2-x-3
YO HELP A SISTER OUT PLEASE!!! Refer to matrix B and identify the matrix element b21.
Define G in terms of the gravitational force between two masses .Write its value and SI unit​
(02.01 MC)When a figure is translated on a coordinate grid, what conclusion can you draw from the pre-image and image?​
Which of the following statements accurately describes the properties of gases
PLEASE HELP!!!! 25 POINTS!!!!! I NEED THIS ASAP!!!!!!
What did the FBI find when they searched Ivins' home and office? How did these findings complicate the case?
Does anyone know what type of big this is or worm or slug or something
A bus starts to move from rest. if it's velocity becomes 90 km per hour after 8 seconds , calculate it's acceleration (numerical problem)​
Which democracy Is citizens participate in government? A. Direct Democracy B. Representative Democracy