Answer:
final answer:
a (first number) = - 4
b (second number) = 3
c (third number) = 2
Step-by-step explanation:
1. put the equation in numbers and letters:
a + b + c = 1
(a + c) - b = - 5
(a + b) - c = - 3
2. Use one of the equations to solve the other
bla bla bla
too long to explain but I got the final answer