Sederhanakanlah m+3n-4m+5m

M + 3n – 4m + 5m
= 3n + (m – 4m + 5m)
= 3n + 2m

M+3n-4m+5m
= m-4m+5m+3n
= -3m+5m+3n
= 2m+3n