Michael has two brothers. His oldest brother is 1 year older than twice Michael's age when Michael was a year younger. His younger brother is 5 years old, which is a third of the age of the older brother. What is their combined age?
The oldest brother is 15 because 3 x 5 = 
<gadget id="calculator">3*5</gadget>
<output>15</output>
15.
Michael is 8 because if 1 + (Michael's age - 1) x 2 = 15 then Michael's age = 8.
Their combined age is 28 because 5 + 15 + 8 = 
<gadget id="calculator">5+15+8</gadget>
<output>28</output>
28.

<result>28</result>