3()3()3()3=5填运算符号或括号.还有3()3()3()3=7,3()3()3()3=2,3()3()3()3=4,3()3()3()3=6,3()3()3()3=8怎么写,快点回我!这是作业!

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3()3()3()3=5填运算符号或括号.
还有3()3()3()3=7,3()3()3()3=2,3()3()3()3=4,3()3()3()3=6,3()3()3()3=8怎么写,快点回我!这是作业!

3+3-(3/3)=5 3+3-3+3=6 3+3+(3/3)=7 3x3-3/3=8 3/3+3/3=2