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This means that        x + (x + 10) = 74.
                                                     or 2x + 10 = 74
                                                     or 2x = 74 – 10                     Transposing 10 to RHS
                                                     or 2x = 64                             Dividing both sides by 2
                                                     or x = 32.         This is one number.

                   The other number is x + 10 = 32 + 10 = 42. The desired numbers are 32 and 42.




               Let’s see another example

               Example 2: The present age of Sahil’s mother is three times the present age of Sahil.
               After 5 years their ages will add to 66 years. Find their present ages. Solution:

               Solution:  Let Sahil’s present age be x years, his mother’s age will be 3x years.













               It is given that this sum is 66 years.
               Therefore,                4x + 10 = 66
                                              or 4x= 66-10                        we transpose 10 to RHS,
                                       or 4x = 56
                                       or x = 56÷ 4 = 14 (solution)

               Thus, Sahil’s present age is 14 years and his mother’s age is 42 years.






















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