Step-by-step explanation:
Let the first number be = x
Let the second number be = 4x -28
Let the third = x-7
x + 4x+ x -28 - 7
6x - 35
6x -35 = 157
6x = 157 +35
6x = 192
x = 32
therefore, x = 32, the second x = 4(32) -28
728 - 28
x = 100
third x = 32 - 7
x = 25.
