Question

3m -9n = 24; n = - 1,1,3

Answer 1

given that

3m -9n =24

when n= -1

substitute it in the equation

thus

3m -9(-1)=24

solving for m

3m +9 =24

3m =24-9

3m=15

dividing through by 3

3m/3 =15/3

m =5 . thus when n= -1 , m=5

also put n=1 into the equation

3m -9(1) =24

3m -9 =24

3m= 24+9

3m =33

dividing through by 3

3m/3 = 33/3

m=11

thus when n= 1, m=11

lastly, put n= 3 into the equation

3m -9(3) =24

3m -27 = 24

3m = 24+27

3m =51

dividing through by 3

3m/3 =51/3

m =17. Thus when n = 3 , m= 17.