Charles has 24 marbles. he has 6 more yellow marbles than blue marbles. which equation represents this situation? 1.n+(n+6)=24,where n is the number of yellow marbles. 2.n+(n+6)=24,where n is the number of blue marbles. 3.n+6n=24,where n is the number of blue marbles. 4.n+6n=24,where n is the number of yellow marbles.

2.N+(N+6)=24,where N is the number of blue marbles.

Step-by-step explanation:

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)

which is the correct equation.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7