Sarah's Math Problem

#! /usr/bin/env python3

def solve():
    x = 0
    while True:
        for y in range((x - 5) + 1):
            for z in range((round(x / 2)) + 1):
                if x + y + z == 60 and x - y == 5 and x / 2 == z:
                    yield x, y, z
        x += 1

answer = next(solve())
print(answer)
# (26, 21, 13)