Question

If (2,-1) is solution of the equation 3x+my=7 find m.​

Answer 1

Answer:

m is 7

Step-by-step explanation:

3x+my=7

put x= 2, y = -1

3(2) + m(-1) = -1

6 - m = -1

-m = -1 - 6

- m = -7

negative cancel with each other.

m = 7