Mickey has a total of 36 unmatched socks red, black, brown. There are 11 unmatched red, and four times as many unmatched black as brown. How many unmatched black does he have?

Question

anonymous · Answer

r = red
b = black
x = brown

r + b + x = 36
r = 11
b = 4x
now we sub
11 + 4x + x = 36
11 + 5x = 36
5x = 36 - 11
5x = 25
x = 5

b = 4x
b = 4(5)
b = 20

There are 11 unmatched red, 20 unmatched black, and 5 unmatched brown