Răspuns :
[14-(6:a+4)×a]:4=1
14-(6:a+4)×a=1×4
14 -(6:a+4)×a = 4
(6:a+4)×a = 14-4
(6:a+4)×a = 10
6 + 4×a = 10
4×a = 10-6
4×a = 4
a = 4:4
a = 1
14-(6:a+4)×a=1×4
14 -(6:a+4)×a = 4
(6:a+4)×a = 14-4
(6:a+4)×a = 10
6 + 4×a = 10
4×a = 10-6
4×a = 4
a = 4:4
a = 1
[14 - ( 6 : a + 4 ) × a ] : 4 = 1
14 - ( 6 : a + 4 ) × a = 1 × 4
14 - ( 6 : a + 4 ) × a = 4
( 6 : a + 4 ) × a = 14 - 4
( 6 : a + 4 ) × a = 10
6 a / a + 4 × a = 10
6 + 4 × a = 10
4 × a = 10 - 6
a = 4 : 4
a = 1
14 - ( 6 : a + 4 ) × a = 1 × 4
14 - ( 6 : a + 4 ) × a = 4
( 6 : a + 4 ) × a = 14 - 4
( 6 : a + 4 ) × a = 10
6 a / a + 4 × a = 10
6 + 4 × a = 10
4 × a = 10 - 6
a = 4 : 4
a = 1