Question

If x=-2,y=-1 is a solution of mx+2y=15. Find the value of m.

Answer 1

Answer:

Step-by-step explanation:

(- 2 , - 1) is a solution of mx + 2y = 15 means that - 2m - 2 = 15, that is,

2m = - 17, that is , m = - 17 / 2.

Answer 2

Answer:m =17/-2

Step-by-step explanation:

MX+2y=15

X=-2 and y=-1

M(-2)+2(-1)=15

-2m -2=15

- 2m =15+2

-2 m =17

m= 17/-2