Answer:
$25
Explanation:
-James and two cousins (that's 3 people)
3x=30+(15x3)
x being the amount of money they had each
3x=75
3 3 (we divide by three to find the amount of money each person had)
x=25 (each person had 25 dollars)
CHECK:
3x25=30+(15x3)
75=75
true
FINAL ANSWER:
James and his two cousins each received 25 dollars.