please tell me the method to put the parentheses at the right places

please tell me the method to put the parentheses at the right places

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Add the parentheses based on highest order of operation, then left to right.

example:

- 4-3*7-12/6+2 = x
- 4-(3*7)-(12/6)+2 = x Multiplication and division are higher order than add and subtract, but the same as each other so they are left to right.
- (((4-(3*7))-(12/6))+2) Addition and subtraction are the same order of precedence so they are just done left to right.

Hope this example helps,

Steven P.