Question 1053019
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Debbie is two years older than chuck. The sum of their ages is 30. Find each of their ages.
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<U>Solution 1</U>.  Two equations


<pre>
D - C =  2,
D + C = 30.

Add the two equations.
</pre>

<U>Solution 2</U>.  One equation.


<pre>
Let D be the Debbie age. Then the Chuk age is D-2.

We are given that

D + (D-2) = 30.

Simplify and solve.
</pre>