Answer:
Smallest number = 15
Second number = 177
Third number = 109
Explanation:
Givens
Let the first number = x
Let the second number = 12x - 3
Let the third number = 7x + 4
Equation
x + 12x - 3 + 7x +4 = 301 Combine like terms
Solution
20x + 1 = 301 Subtract 1 from both sides
20x = 301 - 1 Combine
20x = 300 Divide by 20
x = 300/20
x = 15