Question

va rog!!!!!!!!!!!!!dau coroană

Answer 1

3 + 3 × { 3 + 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 3 × 31

3 + 3 × { 3 + 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 93

3 × { 3 + 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 93 - 3

3 × { 3 + 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 90

{ 3 + 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 90 : 3

{ 3 + 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 30

{ 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 30 - 3

{ 3 × [ 3 + 3 × ( 3 - 3 : a ) ] } = 27

[ 3 + 3 × ( 3 - 3 : a ) ] = 27 : 3

[ 3 + 3 × ( 3 - 3 : a ) ] = 9

[ 3 × ( 3 - 3 : a ) ] = 9 - 3

[ 3 × ( 3 - 3 : a ) ] = 6

3 - 3 : a = 6 : 3

3 - 3 : a = 2

3 : a = 3 - 2

3 : a = 1

a = 3 : 1

a = 3 => numărul aflat