Question

Тема 8. 3 задание ПОМОГИТЕ ПЛИЗ

Answer 1

8.3.1

(3/8)*х - (7/12)*х = 24-19

(9/24)*х - (14/24)*х =5

(-5/24)*х = 5

х= 5 : (-5/24) = -24

8.3.2

0,24 - 0,16t = 0.35 -0.15t - 1.9

0.24-0.35+1.9 = 0.16t-0.15t

0.01t=1.79

t=1.79 : 0.01 = 179

Answer 2

38x+19=712x+24

38x-712x=24-19

-524x=5

x=5: (-524)

x= -24

0,4(6-4t)=0,5(7-3t)-1,9

2,4-1,6t=3,5-1,5t-1,9

-1,6t+1,5t=3,5-1,9-2,4

-t=0