1) 6 (5-3 х) = -8 х-7 2) 6 (9+4 х) = 4 х-4 3) 4 (2-3 х) = -7 х+10 4) - 4 (5-4 х) = х+1 5) - 4 (-7+6 х) = -9 х-5

1) 6 (5-3 х) = -8 х-7

6*5-6*3 х=-8 х-7

30-18 х=-8 х-7

-18 х+8 х=-7-30

-10 х=-37

10 х=37

х=37/10

х=3,7

2) 6 (9+4 х) = 4 х-4

6*9+6*4 х=4 х-4

54+24 х=4 х-4

24 х-4 х=-4-54

20 х=-58

х=-58/20

х=-2,9

3) 4 (2-3 х) = -7 х+10

4*2-4*3 х=-7 х+10

8-12 х=-7 х+10

-12 х+7 х=10-8

-5 х=2

х=2 / (-5)

х=-0,4

4) - 4 (5-4 х) = х+1

-4*5-4 * (-4) х=х+1

-20+16 х=х+1

16 х-х=1+20

15 х=21

х=21/15

х=1,4

5) - 4 (-7+6 х) = -9 х-5

-4 * (-7) + 6 * (-4) х=-9 х-5

28-24 х=-9 х-5

-24 х+9 х=-5-28

-15 х=-33

15 х=33

х=33/15

х=2,2