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2x+175-(5x12+12:3)=25+x-180

Răspuns :

2x+175-64=25+x-180
2x+111=x-155
2x-x=-155-111
x=-266
2x+175-(5x12+12:3)=25+x-180
2x+175-25+180=
60+4
2x-x+330=64
x= −266