Реши:

a) 9x-6 (x-1) = 5 (x+2)

3x - 1 _ x = 5-x

б) 6 3 9

a) 9x-6 (x-1) = 5 (x+2)

9x-6x+6=5x+10

3x-5x=10-6

-2x=4

x=-2

б) (3x - 1) / 6 - x/3 = (5-x) / 9

(3x - 1) / 6 - x/3 - (5-x) / 9 = 0

3 (3x - 1) - 6x - 2 (5-x) = 0

9x-3-6x-10+2x=0

5x-13=0

5x=13

x=13/5

a) 9x-6 (x-1) = 5 (x+2)

9x-6x+1=5x+10

2x=-9

x=-4,5

б)

3 (3x-1) - 6x=2 (5-x)

9x-3-6x=10-2x

5x=13

x=2,6