Question

2x+y=15, 3x–y=5
Elimination method ​

Answer 1

Answer:

Answer is x=+4and y= -7.

Step-by-step explanation:

2x+y=15. 1

3x-y=5. 2

Add equation 2nd from1.

2x+y=15

+. 3x-y=5

+. -=-

5x+0=20

So;. 5x=20

x=20/5

x=4

Value of x put in equation 2nd.

3x+y=5

3*4+y=5

12+y=5

y=5-12

y= -7