Cam is 3 years older than Lara. If their combined age is 63, determine their ages by solving an appr

Discussion in 'Calculator Requests' started by math_celebrity, May 28, 2021.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Cam is 3 years older than Lara. If their combined age is 63, determine their ages by solving an appropriate pair of equations.

    Let Cam's age be c.
    Let Lara's age be l.

    We're given two equations:
    1. c = l + 3 (Since older means we add)
    2. c + l = 63
    To solve this system of equations, we substitute equation (1) into equation (2) for c:
    l + 3 + l = 63

    To solve this equation for l, we type it in our search engine and we get:
    l = 30

    Now, we take l = 30 and substitute it in equation (1) to solve for c:
    c = 30 + 3
    c = 33
     

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