Question 1189930
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Demola is two years older than Deji and Tobi is half of Demolas age.
The sum of their ages is 23. How old is deji?
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<pre>
Demola age = x           years.

Deji   age = (x-2)       years.

Tobi   age = {{{x/2}}}.         years.



Write equation for the combined age as you read the problem

    x + (x-2) + {{{x/2}}} = 23.


Multiply both sides by 2 to rid of denominators; then simplify and find x

    2x + 2(x-2) + x = 2*23

    2x + 2x - 4 + x = 46

         5x         = 46 + 4 = 50

          x                  = 50/5 = 10.


<U>ANSWER</U>.  Demola is 10 years old.
</pre>

Solved.


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Dear @MathTherapy, thanks for correction !