часов. Товарный поезд пройдет это же расстояние за 
часов, что на 1 час больше. - = 1 (умножим на х(х-20), чтобы избавиться от дробей)
- 
=1*x(x-20)
= 60 
= -40 - не подходит, поскольку х < 0
1 "Where do you live?" -Sue asked him. Косвенная речь:Sue asked him"Where do you live?"
2 "Have you done your homework?" -mom asked me. Косвенная речь:Mom asked me "Have you done your homework?"
3 "Will you go to the cinema tomorrow?" - asked Robert from his sister. Косвенная речь:Robert asked from his sister "Will you go to the cinema tomorrow?"
4 Mom asked from her daughter:"How many grades did you get yesterday?"
"How many grades did you get yesterday?" - asked mom from her daughter.
5 Anna asked me:"What music do you listenning now?" "What music do you listenning now?" - asked me Anna
Пошаговое объяснение:
1. 8x-8=20-6x
8x+6x=20+8
14x=28
x=2
2. (7x+1)-(9x+3)=16
7x+1-9x-3=16
-2x=16-1+3
-2x=18
-x=9
x=-9
3. 9-4x=3x-40
-4x-3x=-40-9
-7x=-49
-x=7
x=-7
4. 2,7+3x=9(x-2,1)
2,7+3x=9x-18,9
3x-9x=-18,9-2,7
-6x=-21,6
6x=21,6
x=3,6
5. 4x=24+x
4x-x=24
3x=24
x=8
6.(5x+8)-(8x+14)=9
5x+8-8x-14=9
-3x=9-8+14
-3x=15
-x=-5
x=5
7. 4,7-1,1x=0,5x-3,3
-1,1x-0,5x=-4,7-3,3
-1,6x=-8
-x=5
x=-5
8. 4(x-1)+2=10-2(x-6)
4x-4+2=10-(2x-12)
4x-2=10-2x+12
4x+2x=10+12+2
6x=24
x=4
Пошаговое объяснение: