4x+5 (3-2x) = 5-11x

(2-7x) / 6 + (4x+7) = - x/2

14 (2y-3) - 5 (y+4) = 2 (3y+5) + 5y

5 + (7y-12) / 3=y+13

1) 4x+5 (3-2x) = 5-11x

4x+15-10x-5+11x=0

5x+10=0

5x=-10 (:5)

x=-2

2) (2-7x) / 6 + (4x+7) = - x/2

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

2-7x+24x+42-3x=0

4x+44=0

4x=-44 (:4)

x=-11

3) 14 (2y-3) - 5 (y+4) = 2 (3y+5) + 5y

28y-42-5y-20=6y+10+5y

28y-5y-6y-5y=10+42+20

12y=72 (:12)

y=6

4) 5 + (7y-12) / 3=y+13

5*3+7y-12=3 (y+13)

15+7y-12=3y+39

7y-3y=39-15+12

4y=36 (:4)

y=9

1) 4x+15-10x-5+11x=0

5x+10=0

x=-2

2) ((2-7x) / 6 + (4x+7) = - x/2) 6

2-7x+24x+42+3x=0

44+20x=0

x=-2,2

3) 28y-42-5y-2-6y-10-5y=0

12y-52=0

y=13/3

4) 15+7y-12-3y-39=0

4y-36=0

y=9