Question

{[x-49):4+1]×5+120}:4=125​

Answer 1

Răspuns:

x = 349

Explicație pas cu pas:

{ [ ( x - 49 ) : 4 + 1 ] × 5 + 120 } : 4 = 125

{ [ ( x - 49 ) : 4 + 1 ] × 5 + 120 } = 125 × 4

{ [ ( x - 49 ) : 4 + 1 ] × 5 + 120 } = 500

[ ( x - 49 ) : 4 + 1 ] × 5 = 500 - 120

[ ( x - 49 ) : 4 + 1 ] × 5 = 380

[ ( x - 49 ) : 4 + 1 ] = 380 : 5

[ ( x - 49 ) : 4 + 1 ] = 76

( x - 49 ) : 4 = 76 - 1

( x - 49 ) : 4 = 75

x - 49 = 300

x = 300 + 49

x = 349.