👤
a fost răspuns

rezolvati 12×{12+3×[60-3×(27-4×3)]}-5x

Răspuns :

Anaiulia2005


12x{12+3x[60-3x(27-4x3)]}-5X=

12x{12+3x[60-3x(27-12)]}-5X=

12x[12+3x(60-3x15)]-5X=

12x[12+3x(60-45)]-5X=

12x(12+3x15)-5X=

12x(12+45)-5X=

12x57-5X=

684-5X ⇒ 684=5X ⇒ X=684:5⇒ X= 136.8

Alte intrebari