Equations/ Distributive proper

12=-3(x-5)

5(5x-5)=50

k/2=-6

r/5=10

0=-7(5x-10)

2(x-1)=4

20=-4(6x+1)

12(x-5)=60

20=-10(x+8)

-2(2x+9)=2

x=5

x=3

k=-12

x=10

x=1

x=3

x=-10

x=2

r=50

x=-1