Question

[(x+174:3)x3+4]x11=1991
(x:11-4):3-165:3=12:3
cina ma poate ajuta

Answer 1

Răspuns:

Explicație pas cu pas:

[ ( x + 174 : 3 ) × 3 + 4 ] × 11 = 1 991

( x + 58 ) : 3 + 4 = 1 991 : 11

( x + 58 ) : 3 = 181 - 4

( x + 58 ) : 3 = 177

x + 58 = 177 × 3

x + 58 = 531

x = 531 - 58

x = 473

______________

( x : 11 - 4 ) : 3 - 165 : 3 = 12 : 3

( x : 11 - 4 ) : 3 - 55 = 4

( x : 11 - 4 ) : 3 = 4 + 55

x : 11 - 4 = 59 × 3

x : 11 = 177 + 4

x = 181 × 11

x = 1 991