(x+6)/(x-6)=3

X+6=3(x-6)

X+6=3x-18

x-3x=-18-6

-2x=-24

X=12

2) (x+25)=-3(x-7)

x+25=-3x+21

x+3x=21-25

4x=-4

x=-1

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

x+11=3x-9

x-3x=-11-9

-2x=-20

x=10

4)(x-43)=3(x-5)

x-43=3x-15

x-3x=43-15

-2x=28

x=-14

5)x-30=-4(x-5)

x-30=-4x+20

x+4x=20+30

5x=50

x=10

6)x-109=-5(x+5)

x-109=-5x-25

x+5x=-25+109

6x=84

x=14

7)x-49=-5(x-7)

x-49=-5x+35

x+5x=35+49

6x=84

x=14

8)x-40=-5(x-4)

x-40=-5x+20

x+5x=20+40

6x=60

x=10

9)x+13=2(x+6)

x+13=2x+12

x-2x=12-13

-x=-1

x=1