Question

determinati termenul necunoscut x,stiind ca: a) 72:x=9 b) x:5+13=23 c) 231:11=x+7 d) 1:x=x VA ROG DAU COROANA!​

Answer 1

a) 72 : x = 9

x = 72 : 9

x = 8

b) x : 5 + 13 = 23

x : 5 = 23 - 13

x : 5 = 10

x = 10 * 5

x = 50

c) 231 : 11 = x + 7

21 = x + 7

x = 21 - 7

x = 14

d) 1 : x = x

x = 1