Question

1/2(4x)=-20 plz help and show work

Answer 1

X=10 because........
the opposite of 1/2=times 2
20 times 2=40
40 divided by 4=10, so 
x=10

Answer 2

Ok so you would have to first get rid of the fraction. So you would multiply both sides by 2. As 2 is the reciprocal of 1/2.

2[1/2(4x)]= 2(-20)

^ So now the 1/2 would be cancelled out with the two. And don't forget to multiply the -20 by 2, too. 

4x= -40

^ Now, you want to divide both sides by 4 to isolate x on one side. So ..

4x / 4= -40/4

^ The fours cancel each other out and -40 is divided by 4. 

x = -10

^So x equals -10! hope this helped !!