Answer:
n=5 and m=6
Step-by-step explanation:
Given,
5m+3n=45 -(i)
10m-4n=40 -(ii)
Multiplying (i) by 2 and subtracting (ii) from (i)
10m+6n=90
-10m+4n=-40
__________
10n=50
|n=5|
Put in (ii)
10m=40+4(5)
10m=60
|m=6|
