Lisa has 5 more green marbles than blue marbles. She has a total of 40 green and blue marbles. Which system of equations represents this situation if x is the number of green marbles and y is the number of blue marbles?

5 answers

y = x + 5

x + y = 40
x=y+5
x+y=40
i think its goood
Use the substitution method and she has 7 green marbles and 28 blue marbles
5+X=Y
X+Y= 40