Question 942078
Subtract equation 2 from equation


2r+b=10
2r-3b=-6
----------
0r+4b = 16


4b = 16
b = 16/4
b = 4


Use b = 4 to find r.


2r+b=10
2r+4=10
2r = 10-4
2r = 6
r = 6/2
r = 3



So <font color="red">r = 3</font> is your answer