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2*{10+3*[20-2*(18-3*6)]}-5x=70

Răspuns :

CarMina03
2*{10+3*[20-2*(18-3*6)]}-5x=70
2*{10+3*[20-2*(18-18)]}-5x=70
2*[10+3*(20-2*0)]-5x=70
2*[10+3*(20-0)]-5x=70
2*(10+3*20)-5x=70
2*(10+60)-5x=70
2*70-5x=70
140-5x=70

5x=140-70

5x=70

x=70:5

x=14

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