(3×3+3)÷3=4(3+3)÷3+3=53+3+3-3=63÷3+3+3=7
(3×3+3)÷3=4 (3+3)÷3+3=53+3+3÷3=73×3-3÷3=8
(3×3+3)÷3=4 3-3÷3+3=53÷3+3+3=7
偶然一向,居然想出来了。(3×3+3)÷3=4嘿嘿~
3/3+3+3=7