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[1+(5×7-2×15)]÷2×(1×8-15)÷[3÷(1+14÷7)+2]

Răspuns :

[1+(5×7-2×15)]:2×(1×8-15):[3:(1+14:7)+2]=

[1+(35-2×15)]:2×(1×8-15):[3:(1+14:7)+2]=

[1+(35-30)]:2×(1×8-15):[3:(1+14:7)+2]=

(1+5):2×(1×8-15):[3:(1+14:7)+2]=

6:2×(1×8-15):[3:(1+14:7)+2]=

6:2×(8-15):[3:(1+14:7)+2]=

6:2×-7:[3:(1+14:7)+2]=

6:2×-7:[3:(1+14:7)+2]=

6:2×-7:[3:(1+2)+2]=

6:2×-7:(3:3+2)=

6:2×-7:(1+2)=

6:2×-7:3=

3×-7:3=

-21:3=

=-7

Poza conține rezolvarea.
Vezi imaginea NICOMELA