Evaluate/simplify algebraic expressions - Wiki

  • #evaluate
    • Peter is `n` years old now. His sister is 3 times as old as he. What will their total age be in 5 years' time?
      • #evaluate/simplifyalgebraicexpressions

        Peter = n years old

        Sister = 3n year old

        In 5 years

        Peter = n + 5 years old

        Sister = 3n + 5 years old

        Total age = (4n + 10) years old