1) 3-4x = - 8x - 5

2) 4 (3x+4) - 5 = - 1

3) 5+4 (3x+5) = 2x - 5

4) 6 (2x+3) - 7 (3x - 4 = 14x

5) 4 (3x+7) - 6 (2x+5) = 5x - 1

6) 6 (x-4) + 2,3=3 (2x-7) - 8

1) - 4x+8x=-5-3

4x=-8

x=-2

2) 12x+16-5=-1

12x=-1+5-16

12x=-12

x=-1

3) 5+12x+20=2x-5

12x-2x=-5-5-20

10x=-30

x=-3

4) 12x+18-21x+28=14x

12x-21x-14x=-18-28

-23x=-46

x=2

5) 12x+28-12x-30=5x-1

-5x=-1-28+30

-5x=57

x=-11,4

6) 6x-24+2,3=6x-21-8

6x-6x=24-2,3-21-8

x=-7,3

1) 3-4 х=-8*-5

-4*+8*=-5-3

4 * = - 8

*=-8:4

*=-2