450-5×3÷3-24×4+z÷3=378​

Răspuns :

450-5×3÷3-24×4+z÷3=378

450-15÷3-96+z÷3=378

450-5-96+z÷3=378

445-96+z÷3=378

349+z÷3=378

z÷3=378-349

z÷3=29

z= 29×3

z=87

Succes !!!