Question

Решите уравнение: 9(5х + 13) - 143 = 109 15(13х-7)-191=94 (y+46) : 3 = 18 (2х+39) : 5=13 182 : (х-15) =14

Answer 1

9(5х+13)-143=109

45x-135=0

x=135/45
x=3

 

15(13х-7)-191=94

195x-390=0

x=390/195
x=2

 

(y+46):3=18

y/3-(8/3)=0
y=8

 

(2х+39):5=13

0.4x-5.2=0

x=5.2/0.4
x=13

 

182:(х-15) =14

x-15-13=0
x=28