1) 5/6 б-5/9 б+1=1/2 б+1/3

2) 3/4 х - 2/3 х+1 = 1/2 х + 1/6

3) 5/6 у - 3/4 у + 1 = 2/3 у - 1/6

1) 5/6 б-5/9 б-1/2 б=1/3-1

(5*3/18-5*2/18-1*6/12) б=-2/3

-б=-2/3

б=2/3

2) (3/4-2/3-1/2) х=1/6-1

(3*3/12-2*4/12-6/12) х=-5/6

-5/12 х=-5/6

х=-5/6 * (-12/5)

х=2

3) (5/6-3/4-2/3) у=-1/6-1

(5*2/12-3*3/12-2*4/12) у=-1 1/6

-7/12 у=-7/6

у=-7/6 * (-12/7)

у=2