Answer:

Step-by-step explanation:

36j + j = 37j
Explanation.
You could translate this sum into a normal sebtence: I have 36 apples and add 1 apple more.
The sum will then be 36 apples + apple = 37 apples.
Replacing the word (in this explanation 'apple') by a letter learns us 36a + a = 37a
Hence 36j + j = 37j
8 grams
(i think) hope this helps
(sry if its wrong)
19: He multiplied instead of dividing which will make a totally incorrect answer