Question

Sa se afle x numar natural:

r) (x+3):2=5

s) (7+X):3=12

Va rog ajutati ma!​

Answer 1

Răspuns:

r) (x+3):2=5=>x+3=5·2=>x=10-3=>x=7

s) (7+X):3=12=>7+x=12·3=>x=36-7=>x=29

Answer 2

r)

( x + 3 ) : 2 = 5

x + 3 = 5 × 2

x + 3 = 10

x = 10 - 3

x = 7

s)

( 7 + x ) : 3 = 12

7 + x = 12 × 3

7 + x = 36

x = 36 - 7

x = 29