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10×{x-10×[216+10×(24+24:4)]}=1000

Răspuns :

sper sa intelegi unde e inmultire si unde este fiecare paranteza
Vezi imaginea ARKADATA
10·[x-10·(216+10·30)]=1000
10·(x-10·516)=1000
=x-10·516=1000÷10
=x-10·516=100
=x-10=516÷100
=x-10=5,16
x=10+5,16
x=15,16