Answer:
36 green marbles
Step-by-step explanation:
Let b = number of blue marbles
g= number of green marbles
g = 4b+8
The total is 43
g+b = 43
Substitute 4b+8 in for g
4b+8 +b = 43
Combine like terms
5b +8 = 43
Subtract 8 from each side
5b+8-8 = 43-8
5b = 35
Divide each side by 5
5b/5 = 35/5
b=7
There are 7 blue marbles
Now we need to find the green marbles
b+g=43
43-b =g
43 -7 =36
