3 (y+5) - 2y=

3 (2x+7) - (5x+11) =

6 (6m-n) - 2 (m-5n) =

-12x - (2-8x) =

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

3 (2x-1) + 19=

10-2 (3y+5) =

2-3 (2z-1) =

3-y+2 (5-y) =

1) 3 у+15-2 у

1 у+15

2) 6 х+21-5 х-11

1 х+10

3) 36m-6n-2m+10n

34m+4n

38mn (коэфециент)

4) - 12 х-2+8 х

-4 х-2

5) - 4 х+1+3 х-1

-1 х (+0)

6) 6 х-3+19

6 х+16

7) 10-6 х+10

20-6 х

8) 2-6z+2

4-6z

9) 3-y+10-2y

13-3y

3 у+15-2 у=у+15

6 х+21-5x-11=x-10

36m-6n-2m+10n=34m+4n

-12x-2+8x=-4x-2

-4x+1+3x-1=-x

6x-3+19=6x+16

10-6y-10=-6y

2-6z+3=5-6z

3-y+10-2y=13-3y