Question

9x -4y=2000, 7x-3y=2000 by elimination method please help me out​

Answer 1

Answer:

The solutions are- x = 2000 and y = 4000.

Step-by-step explanation:

Refer the images.

Adiós! Hope this helps you.

Answer 2

Step-by-step explanation:

9x-4y=2000-------------1

27x-3y=2000------------2

multiplying equation 1 by 3

and

equation 2 by 4

27x-12y=6000----3

28x-12y=8000-----4

subtracting equation 3 and 4

27x-12y=6000

28x-12y=8000

- + -

___________

-x =-2000

x=2000

putting x= 2000 in equation 1

9x-4y=2000

9(2000)-4y=2000

18000-4y=2000

-4y=2000-18000

-4y=-16000

y=-16000

_______

-4

y=4000

hence

x=2000,y=4000