Question

Charles has 24 marbles .He has 6 more yellow marbles than blue marbles which it the correct equation represent this situation.

Answer 1

Let N represent the number of blue marbles and Y represent the number of yellow marbles, then:

24 = N + Y

But we know that there are 6 more yellow marbles than blue marbles, therefore:

Y = N + 6

So we have

24 = N + (N + 6)