D. None of those. The actual answer should be X + 7/2
2/3x + 7 = x-7
+7 +7
---------------------
2/3x + 14 = x
-2/3x -2/3x
----------------------
14 = 1/3x
*3 *3
-------------
42 = x
Hope this helps! :)
Answer:
The answer is C. Hope it helps :)
Your answer is 21.7724<span>Kilograms</span>