Logic Puzzles

Recreation Fun & Games
10

3 x = 30
2 y + x = 20
2 z + y = 13

x = 10
y = 5
z = 4

1/2 x + (x + y + z) + 1/2 z = 5 + 19 + 2 = 26

1/2 x + (x + y + z) * 1/2 z = 5 + 19 * 2 = 43

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