Regular Expression

Question

Hello All,

 

              Plz Help me i need a regular expression which matches the exact braces and removes unnecessary.

string str14 = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE))))))))";

String str15= "((((((((((((((B48B20, XB1141) + PLUGIN_HYBRID + ECE)";

 

 

 

Expected output is :

 

str14 = ((B48B20, XB1141) + PLUGIN_HYBRID + ECE)

str15 = ((B48B20, XB1141) + PLUGIN_HYBRID + ECE)

 

 

Plz help me

 

Thank u