Question

3(1-2х)-2(3х-4)=(5-4х)

Answer 1

3(1 - 2х) - 2(3х - 4) = 5 - 4х
3 - 6х - 6х + 8 = 5 - 4х
- 6х - 6х + 4х = 5 - 3 - 8
- 8х = - 6
х = - 6 : (- 8)
х = 0,75

5(2х - 3) - 7(х - 2) + 7 = (3х - 5) + х
10х - 15 - 7х + 14 + 7 = 3х - 5 + х
10х - 7х - 3х - х = - 5 + 15 - 14 - 7
- х = - 11
х = 11

2(7 - х) - 3(4х - 5) - 8 = 7(3 - 2х)
14 - 2х - 12х + 15 - 8 = 21 - 14х
- 2х - 12х + 14х = 21 - 14 - 15 + 8
0х = 0
х - любое число

Answer 2

1)3-6х-6х+8=5-4х
12х-4х=11-5
8х=6
х=6/8=3/4=0,75

2)5(2х-3)-7(х-2)+7=(3х-5)+х

10х-15-7х+14+7=3х-5+х

4х-3х=6+5

х=11

3)2(7-х)-3(4х-5)-8=7(3-2х)

14-2х-12х+15-8=21-14х

0х=0

х∈(-∞;∞)