Question

Solve for x andy:
- 4x+y=6
-5x - y =21​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

-4x+y=6.........(1)

-5x-y=21.......(2)

From (1):

y=4x+6[goes to (2)]

-5x-(4x+6)=21

-5x-4x-6=21

-9x-6=21

-9x=21+6

x=-27/9

x=-3[goes to (1)]

-4(-3)+y=6

12+y=6

y=6-12

y=-6

Therefore,x=(-3) and y=(-6)