Gavin and Maria are both the same age.
Gavin multiplied his age by three, subtracted four then multiplied the answer by three.
Maria multiplied her age by eight then added five
Gavin and Maria arrived at the same answer as each other.
How old are Gavin and Maria?
Topics: Starter  Algebra  Simultaneous Equations
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Let Gavin and Maria be x years old.
3(3x  4) = 8x + 5
9x  12 = 8x + 5
x = 17
Gavin and Maria are both seventeen years old.
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