Question

Cassie’s Age is 3 less than twice kara’s age. The sum of their ages is 42.

Answer 1

Answer:

Kara's age   = 15 years

Step-by-step explanation:

Let Kara's age = n years

Cassie's age = 2n - 3

Sum of their ages = 42

n + 2n - 3 = 42  {Combine like terms}

      3n - 3 = 42       { add 3 to both sides}

           3n = 42 +3

           3n = 45           {Divide both sides by 3}

       3n/3 = 45/3

              n = 15

Kara's age   = 15 years