I need help with 19 20 22 and 23 I will give brainliest

Question 19:
---------------------------------------------
Question
---------------------------------------------
98 = t - 18

---------------------------------------------
add 18 to both sides
---------------------------------------------
98 + 18 = t - 18 + 18
116 = t
t = 116

---------------------------------------------
Answer: t = 116
---------------------------------------------

Question 20:
---------------------------------------------
Question
---------------------------------------------
12 = g - 56

---------------------------------------------
Add 56 to both sides
---------------------------------------------
12 + 56 = g - 56 + 56
68 = g
g = 68

---------------------------------------------
Answer: g = 68
---------------------------------------------

Question 22:
---------------------------------------------
Question
---------------------------------------------
p - 11 = 5

---------------------------------------------
Add 11 to both sides
---------------------------------------------
p - 11 + 11 = 5 + 11
p = 16

---------------------------------------------
Answer: p = 16
---------------------------------------------

Question 23:
---------------------------------------------
Question
---------------------------------------------
a - 1.5 = 4.2

---------------------------------------------
Add 1.5 to both sides
---------------------------------------------
a - 1.5 + 1.5 = 4.2 + 1.5
a = 5.7

---------------------------------------------
Answer: a = 5.7
---------------------------------------------