Answer:
Undo the equation
Y x 3 + 1 = 100
Y = Age of Son
Undo by doing inverse operations
Subtract 1 and divide by 3
100-1=99
99/3=33
33 is younger son's age
33 x 2 = 66 + 1 = 67
Younger son's age is 33 and man is 67
Hope this helps. If you have any questions you may ask
Step-by-step explanation:
