Răspuns :
1)x:8=9, x=9*8=72 2)a:9=5 , a=5*9=45 3)c:6=7, c=7*6=42 4)x:9=6 , x=6*9=54
1)x÷(56÷7)=9
x=8×9
x=72
72÷(56÷7)=9
2)a÷(54÷6)=5
a=9×5
a=45
45÷(54÷6)=5
3)c÷(42÷7)=7
c=6×7
c=42
42÷(42÷7)=7
42÷(42÷7)=7
4)x÷(72÷8)=6
x=9×6
x=54
54÷(72÷8)=6