If 4y + 3y - 2 = 20, what is y?

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If Aftab's age is represented by the letter 'a' and Shabnam’s age is 3 years older, how can we express Shabnam’s age?

Q2.

If 's' represents Shabnam’s age and Aftab is 3 years younger, what expression represents Aftab’s age?

Q3.

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Which of the following is an algebraic expression for Aftab's age if Shabnam's age is 23?