Answer:
It seems that your options aren't correct as the right answer is -5.3333... (recurring)
Explanation:
1) 2x + 4 = 20 + 5x (subtract by the smallest unknown)
-2x -2x
2) 4 = 20 + 3x
-20 -20 (now subtract each side by 20 as we want to leave the unknown on one side and another number on the other side.
3) -16 = 3x (Divide each side by 3)
÷3 = ÷3
4) -5.33333... = x
Now we have found x but if you're unsure you can substitute to see if your answer is correct.
2 x -5.3333 + 4 = -6.6666
20 + 5 x -5.3333= -6.6665
Our answer is correct! (When answers are rounded, it is equal to the same thing).