Question

Помогите пожалуйста, это очень срочно

Answer 1

Ответ:

1) -13-0.4c = -17

-0.4c = -17+13

-0.4c = -4

c = 10

2) -1.74p+(5.9-9) = 17+5.9-2.14p

-1.74p+5.9-9 = 17+5.9-2.14p

-1.74p+2.14p = 17+5.9-5.9+9

0.4p = 26

p = 65

3) 3/5y-6 = -15+y/5 │*5

3y-30 = -75+y

3y-y = -75+30

2y = -45

y = -22.5