Răspuns:
d) 10/3-X=1/9 |×9
30-9X=1
9X=30-1
9X=29
X=29/9
e) 2/7×X=3/2
2X×2=21
4X=21
X=21/4
f) X×5/7=1/2
5X×2=7
10X=7
X=7/10
g) X:3/7=1/6
X×7/3=1/6
7X×6=3
42X=3
X=3/42
h) 6/11:X=3/22
6/11×1/X=3/22
3×11X=22×6
33X=132
X=132/33
Explicație pas cu pas:
sper ca e bine si ca te-am ajutat! o zi placuta