Question

m+n=3.3;0.6/3m-2n=-1,3m-2nis not equal to 0

Answer 1

is it
m+n = 3
0.2m - 2n = -1
=> m-10n=-5
=> m+n= 3
_____________
11n = 8
n = 8/11

m = 3-8/11
m = 25/11

so
3m - 2n = (75-16)/11 ≠ 0