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am nevoie urgent!!!!!​

Am Nevoie Urgent class=

Răspuns :

Răspuns:

a)x + 2/9 = 7/4 × 1/7

x + 2/9 = 1/4

x = 1/4 - 2/9

x = 1/36

b)x + 2/9 = 2,25 : 1,5

x + 2/9 = 1,5

x + 2/9 = 3/2

x = 3/2 - 2/9

x = 11/18

c)x - 1 = 7/4 × 9/14

x - 1 = 9/8

x = 9/8 + 1

x = 17/8

d)x + 1/7 = 15 × 4/3

x + 1/7 = 20

x = 20 - 1/7

x = 139/7

e)x - 1/2 = 12 × 5/6

x - 1/2 = 10

x = 10 + 1/2

x = 21/2

f)x - 1/2 = 15/14 × 7/3

x - 1/2 = 5/2

x = 5/2 + 1/2

x = 3