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Dacax-17×4=y×8=z÷2÷3=56÷u=8,atunci(x+y)-(z+u)=

Răspuns :

x-17*4=8 => x-17*4+17*4=8+17*4 => x=4*(2+17)=4*19
y*8=8 => y=1
z:2:3 = 8 => z=8*3:2=12
56:u=8 => u=7
Restul faci singur. Succes!