Question

909:9-(9*9:x-9)=101. 35*5-54:x*4=139. 60_10:(37-4*x)=101. 38+(38+x:3)-3*10=84.

Answer 1

Răspuns:

1. X=9

2. X=6

4. X=114

Explicație pas cu pas:

1. 909:9-(9×9:x-9)=101

101-(81:x-9)=101

(81:x-9)=101-101=0

81:x=0+9=9

81:x=9

x=81:9

2. 35×5-54:x×4=139 35×5=175

175-54:x×4=139

54:x×4=175-139=36

54:x=36:4=9

54:x=9

4. 38+(38+x:3)-3×10=84

38+(38+x:3)-30=84

(38+x:3)-30=84-38=46

38+x:3=46+30=76

x:3=76-38=38

x=38×3=114