How are algebraic expressions rewritten in different equivalent forms by simplifying them?

You can replace a variable with a given value and evaluate the expression.

so what i did was i used google translate and this is what i got. where do you live? what do you do in your free time? what kind of music, food, sports do you like? what is your favorite color? who is your favorite artist? so what they are doing is asking u questions about urself and u have to respond in spanish or english i bealive. hope this : )