Frank + Sue + Tony = 27 3*(x-2) + (x-2) + x = 27 ( <<<---=== x = Tony earning, and I expressed earnings of other two persons according to the condition) 3x - 6 + x -2 + x = 27 5x - 8 = 27 ====> 5x = 27+8 = 35 ====> x == 7. Answer. Tony: 7 dollars; Sue : 7- 2 = 5 dollars; Frank : 5*3 = 15 dollars. Check. 15 + 7 + 5 = 27 dollars. ! Correct !