Question

If x = 1 and y = 2 are the solultions of mx + ny = 6 and mx - ny = 4, then the value of 3m - 2n =....... * 3 points

Answer 1

Answer:

answer for this question is 17

Answer 2

Answer:

m+2n= 6

m-2n= 4

2m = 10

m = 5

m+2n =6

5+2n =6

2n= 1

n=1/2

.'. 3m-2n= 3×5-2×1/2 =15-1

=14