Question

10-(1+5÷x)×4=2
Cine știe ?
15 +5×{5+5÷[45÷5-(36÷x+4)]+6×0}=65

Answer 1

Răspuns:

X=10.

Explicație pas cu pas:

(1+5:x)·4=2+10.

=12

1+5:x=12:4

=3

5:x=3-1

=2

X=2•5

X=10

Answer 2

5×{5+5:[9-(36:x+4)]+0}=65-15

5×{5+5:[9-(36×x+4)]}=50

5+5:[9-(36:x+4)]=50:5

5+5[9-(36:×+4)]=10

5:[9-(36:x+4)]=10-5

5:[9-(36:x+4)]=5

9-(36:x+4)=5:5

9-(36:x+4)=1

36:x+4=9-1

36:x+4=8

36:×=8-4

36:x=4

x=36:4

×=9