Предмет: Математика, автор: saaya1959

решите пожалуйста уравнения:х+2х+3х=180;3х+4х+5х=180(подробно!)

Ответы

Автор ответа: pripekaterina

х+2х+3х=180
6x=180
x= $frac{180}{6}$
x= 30

3х+4х+5х=180
12x=180
x=15

Автор ответа: брррррррррррр

1)x+2x+3x=180;
6x=180;
x=180:6;
x=30
Ответ:30

2)3x+4x+5x=180;
12x=180;
x=180:12;
x=15
Ответ:15

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