Training for knighthood began at years of age

Training for knighthood started at around 7 years of age. Only boys from noble families were allowed to become knights. Boys became squires at the age of 14, and were typically knighted at around 21 years of age.

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation:

an era of negotiation.

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