Question

Află numerele necunoscute.a)(12_3)×x=72 b)(32+x)÷6=9 c)81÷(x_4)=9 ​

Answer 1

Răspuns:

a)(12-3)*x=72

9x=72

x=8

c)81÷(x-4)=9

81/x-4=9

9(x-4)=81

9x-36=81

9x=117

x=13

b)(32+x)÷6=9

32+x/6=9

32+x=54

x=22