1)

The solution x = 1/2 is a solution to which of the following equations?

5x = 20

4 = 15x

-4x = 60

30 = 60x

2)

Solve the following equation:

|5x| = 20

-20, 20

-4, 4

4, 20

-4, 20

You will try all the cases and see if all the equations will match after substituting or no.

1.

5x

put x = 1/2

2.5 isn't equal to 20

4=15x

put x = 1/2

15 * 1/3 = 7.5

7.5 isn't equal to 4

-4x = 60

put x = 1/2

-4*1/2 = - 2

-2 isn't equal to 60

30 = 60x

pit x = 1/2

60 * 1/2 = 30

30 = 30

Therefore, the correct answer is D. 30 = 60x

2. Answer is B. - 4, 4

Put x = - 4

l 5 * - 4 l = l-20l = 20

20 = 20

Put x = 4

l 5 * 4 l = l20l = 20

20 = 20