Jim is 39
let x be Jim's age then Pamela is x - 15
thus x + x - 15 = 63 → ( sum of their ages)
2x - 15 = 63
add 15 to both sides
2x = 63 + 15 = 78
divide both sides by 2
x = [tex]\frac{78}{2}[/tex] = 39
Jim is 39 and Pamela is 24
