Решите уравнения. хоть сколько-нибудь. 20х = -2 2х + 4 = 0 7х – 2 = 4 12 – 2х = 3х 5х – 8 = 9 + 3х 9х + (6 – 2х) = 15 2х – (5х + 4) = - 8 5 – 3(2х – 7) = -6х 4(5х +8) – 2х = 12 – 5х = - 15 40х = -5 6х + 2 = 0 8х – 5 = 3 16 – 8х = 2х 4х – 3 = 2 + 7х 2х + (4 – 3х) = 11 6х – (3х + 2) = - 8 – 5(2х – 4) = -2х 6(2х +5) – 7х = 17

Х-0.1
Х=-2
Х=1.14286
Х=2.4
Х=8.5
Х=1.28571
Х=0
Утверждение ложное
Х=-1. 11111

1) X=-2:20 x=-1/10
2) 2x=4 x=4:2 x=2
3)7x=4+2 7x=6 x=6:7 x=6/7
4) -2x-3x=12 -5x=12 X=12:(-5) X=-12/5 x=-2 2/5
5)5x-3x=9+8 2x=17 x=17:2 x=8 1/2

-5x=-15 x=-15:(-5) x=3
40x=-5 x=-5:40 x=-1/8
6x+2=0 6x=-2 x=-2:6 x=-1/3
8x-5=3 8x=3+5 8x=8 x=8:8 x=1
16-8x=2x -8x-2x=-16 -10x=-16 x=-16:(-10) x=8:5 x=1 3/5