Question

find two consecutive multiples of 3 whose sum is 45

Answer 1

Let the numbers be x,x+3

so

x+x+3=45

2x+3=45

2x=42

x=21

Answer 2

Answer:

21,24

Step-by-step explanation:

3x + 3x+3 = 45

6x + 3 = 45

6x = 42

x = 7

3x = 21

3x + 3 = 24

so the multipls are 21,24