Question

3 + { 4 x [ 2 + ( 6 + a ) : 3 } - 17 } x 7 = 24

Answer 1

Răspuns:

{ 4 x [ 2 + ( 6 + a ) : 3 } - 17 } x7= 24-3

{ 4 x [ 2 + ( 6 + a ) : 3 >]- 17 } x7 =21

{ 4 x [ 2 + ( 6 + a ) : 3 ] - 17 } =21 :7

{ 4 x [ 2 + ( 6 + a ) : 3 ] - 17 } =3

4 x [ 2 + ( 6 + a ) : 3 ] - 17 =3+17

4 x [ 2 + ( 6 + a ) : 3 ] =20

[ 2 + ( 6 + a ) : 3 ] =20:4

[ 2 + ( 6 + a ) : 3 ] =5

2 + ( 6 + a ) =5x3

2 + ( 6 + a ) =15

( 6 + a ) =15-2

( 6 + a ) =13

6+a=13

a=13-6

a=7