Answer:
a) 2m + 3 = 3m
b) 5(n+4) = 20
c) 2x + 2 = 74
Explanation:
a) double m means 2m, three times m means 3m
b) sum of n+4 comes first, so bracket must be needed
c) Each even number is placed 2 number apart from each other, so if one is x, the other is x+2
