6 + 6 ÷ 6 x 6 - 6 = 3

6 + 6 ÷ 6 x 6 - 6

= 6 + (6 ÷ 6 x 6) - 6
= 6 + (1 x 6) - 6
= 6 + 6 - 6
= 6