Question

Реши уравнения. 18/30-х=4/30+6/30, 10/15+(5/15-х)=14/15, 34/60+8/60+у=41/60+16/60
помогите дам 20 баллов ​

Answer 1

Ответ:

$\frac{18}{30} - x = \frac{4}{30} + \frac{6}{30}$

х= 10/30

Х= 18/30-10/30

х=8/30

$x = \frac{8}{30}$

$\frac{10}{15} + ( \frac{5}{15} - x) = \frac{14}{15}$

х=14/15-10/15

х= 4/15

х= 5/15-4/15

х=1/15

$x = \frac{1}{15}$

$\frac{34}{60} + \frac{8}{60} + y = \frac{41}{60} + \frac{16}{60}$

у=41/60+16/60

y=57/60

y=57/60-(34/60+8/60)

y=57/60-42/60

$y = \frac{15}{60}$