Question

номер 485 решите уравнение

Answer 1

$25z + 49 = 149 \ 25z = 100 \ z = 4$


$13 + 10t = 163 \ 10t = 150 \ t = 15$



$9y - 54 = 162 \ 9y = 216 \ y = 24$



$181 - 8r = 45 \ - 8r = - 136 \ 8r = 136 \ r = 17$

Answer 2

а) 25z=149-49

25z=100

z=100/25

z=4

б) 13+10t=163

10t=163-13

10t=150

t=150/10

t=15

в) 9y=162+54

9y=216

y=216/9

y=24

г) 8r=181-45

8r=136

r=136/8

r=17