Răspuns:
Explicație pas cu pas:
46.
a)
x = 68*16/64 = 17
b)
x = 13*75/15 = 65
47.
a)
2x = 5*8/21 = 40/21
x = 40/21 : 2 = 20/21
b)
5x = 52*4/9 = 208/9
x = 208/9 : 5 = 208/45
48.
a)
4x = 16*5/9 = 80/9
x = 80/9 : 4 = 80/36 = 20/9
b)
4x = 8*15/21 = 8*5/7 = 40/7
x = 40/7 : 4 = 10/7
