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x-17×4=y×8=z:2:3=56:8

Răspuns :

x-17×4=y×8=z:2:3=56:8

z:2:3=56:8
z:2:3 = 7
z:2 = 7×3
z:2 = 21
z = 21×2
z = 42

y × 8 = 7
y = 7/8

x -17×4 = 7
x - 68 = 7
x = 7+68
x = 75