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afalati nr x stiind ca 2×{12+3×[60-3×(27-4×3)]}-5x=64


Răspuns :

Răspuns:

Explicație pas cu pas:

2×{12+3×[60-3×(27-4×3)]}-5x=64

2×{12+3×[60-3×(27-12)]}-5x=64

2×[12+3×(60-3×15)]-5x=64

2×[12+3×(60-45)]-5x=64

2×(12+3×15)-5x=64

2×(12+45)-5x=64

2×57-5x=64

114 - 5x = 64

5x = 114 - 64

5x = 50

x = 50 : 5 = 10