let the amount kala has be k, the amount alonzo has be a, and the amount carlos has be c

in total they have $83, so you have the equation:

a+c+k = 83

alonzo has $8 less than kala so you have the equation

a = k-8

carlos had 3 times what alonzo has so you have the equation:

c = 3a

substiute the equation for a into this

c = 3a

c = 3(k-8)

c = 3k - 24

substitute the equations for a & c involving k into the first equation

a+c+k = 83

(k-8) + (3k - 24) + k = 83

k - 8 + 3k - 24 + k = 83

5k -32 = 83

5k = 115

k = 23

substitute this back into the equations for a and c

a = k-8

a = 23 - 8

a = 15

c = 3k - 24

c = 3(23) - 24

c = 45

therefore, kala has $23, carlos has $45, and alonzo has $15