Solve: 4m-5n=8, 2m+3n=10

1) 4m-5n=8
2) 2m+3n=10 <-m2 


and after we swap their positions... 


4m+6n=20
4m-5n=8 


then subtract to get 
11n=12
n=12/11 


from 1)... 


4m-5(12/11)=8
4m=8+60/11
4m=148/11
m=37/11