Răspuns :
24 + 5 × [ 8 - 2 × ( x - 3 ) ] = 24
5 × [ 8 - 2 × ( x - 3 ) ] = 24 - 24
5 × [ 8 - 2 × ( x - 3 ) ] = 0
8 - 2 × ( x - 3 ) = 0 : 5
8 - 2 × ( x - 3 ) = 0
2 × ( x - 3 ) = 8 - 0
2 × ( x - 3 ) = 8
x - 3 = 8 : 2
x - 3 = 4
x = 4 + 3
x = 7
24 + 5 × [ 8 - 2 × ( x - 3 ) ] = 24
5 × [ 8 - 2 × ( x - 3 ) ] = 24 - 24
5 × [ 8 - 2 × ( x - 3 ) ] = 0
8 - 2 × ( x - 3 ) = 0 : 5
8 - 2 × ( x - 3 ) = 0
2 × ( x - 3 ) = 8 - 0
2 × ( x - 3 ) = 8
x - 3 = 8 : 2
x - 3 = 4
x = 4 + 3
x = 7