Question 1195326
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By the elementary nature of the problem, it seems very likely that you are not expected to use formal algebra to find the answer.  Use simple logical reasoning and basic arithmetic instead.<br>
If Guinevere turns 22 in 5 years; then she is now 22-5 = 17.
Since Lancelot is 6 years older then Guinevere, he is now 17+6 = 23.<br>