А)1/5x+1/2=0 б)1/3x-1/6=0 в)-1/8x=1/2=0 г)-1/10x=1/5=0 решите уравнение

1/5x+1/2=0
1/5x=-1/2
x=-1/2:1/5
x=-1/2*5/1
x=-5/2
x=-2 1/2

1/3x-1/6=0
1/3x=1/6
x=1/6:1/3
x=1/6*3/1
x=3/6
x=1/2

-1/8x-1/2=0
-1/8x=1/2
x=-1/2:1/8
x=-1/2*8/1
x=-8/2
x=-4

-1/10x-1/5=0
-1/10x=1/5
x=-1/5:1/10
x=-1/5*10/1
x=-10/5
x=-2