Предмет: Математика, автор: rajnbekovagauhar

720: (90-x)+45= 125это соч помогите пожалуйста​

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Автор ответа: LastTeamaster
0

720:(90-x)+45=125

720:(90-х)=125-45=80

90-х=720:80=9

x=90-9

x=81

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