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exerciti trei ma puteti ajuta va rog

Exerciti Trei Ma Puteti Ajuta Va Rog class=

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3.
a. 8×5: x = 10
40 :x = 10
x = 40 : 10
x = 4

81 : 9 × x = 54
9 × x = 54
x = 54 : 9
x = 6

b. 6 × x : 3 = 8
6 × x = 8 × 3
6 × x = 24
x = 24 : 6
x = 4

15 : x × 6 = 30
15 : x = 30 : 6
15 : x = 5
x = 15 : 5
x = 3

c. x : 9 × 4 = 28
x : 9 = 28 : 4
x : 9 = 7
x = 9 × 7
x = 63

x : 3 × 4 = 36
x : 3 = 36 : 4
x : 3 = 9
x = 9 × 3
x = 27