Ответ:
Пошаговое объяснение:
1)17 - 2(3х - 5) - 5(4х - 1) = 6х
17 - 6х+ 10 - 20х + 5 = 6х
-32х=- 32
х= 1
2) 7/10х - 3/8х= 13
56/80х - 30/80 х= 13
26/80х= 13
х= 13 : 26/80
х= 13 * 80/26
х= 40
3) 5х+4= ( 7х+17)/2
2(5х+4)= 7х+17
10х+8= 7х+17
3х= 9
х= 3
4) (5х+3)/16= (2х-3)/12
12(5х+3)=16(2х-3)
60х +36= 32х-48
28х= - 84
х= -84 : 28
х= -3
5) (2-5х)/6 - (4-3х)/4= (3х-2)/16
2/6 - 5х/6 - 4/4 + 3х/4= 3х/16 - 2/16
-2/3 - х/12= 3х/16 - 2/16
-х/12= 3х/16 + 13/24
-13х/48= 13/24
х= 13/24 : (-13/48)
х= 13/24 * (-48/13)
х= -2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
Пошаговое объяснение:
1)17 - 2(3х - 5) - 5(4х - 1) = 6х
17 - 6х+ 10 - 20х + 5 = 6х
-32х=- 32
х= 1
2) 7/10х - 3/8х= 13
56/80х - 30/80 х= 13
26/80х= 13
х= 13 : 26/80
х= 13 * 80/26
х= 40
3) 5х+4= ( 7х+17)/2
2(5х+4)= 7х+17
10х+8= 7х+17
3х= 9
х= 3
4) (5х+3)/16= (2х-3)/12
12(5х+3)=16(2х-3)
60х +36= 32х-48
28х= - 84
х= -84 : 28
х= -3
5) (2-5х)/6 - (4-3х)/4= (3х-2)/16
2/6 - 5х/6 - 4/4 + 3х/4= 3х/16 - 2/16
-2/3 - х/12= 3х/16 - 2/16
-х/12= 3х/16 + 13/24
-13х/48= 13/24
х= 13/24 : (-13/48)
х= 13/24 * (-48/13)
х= -2