Answer:
X+42=85
or, X=85-42
therefore, X=43
8b=48
or, b=48/8
therefore, b=6
19-g=7
or, -g=7-19
or, -g= -12
therefore,g=12
Explaination: your answer of questions no. 3 is wrong.
Because when we subtract 7 from 19 then it is 12.
Hope you are helped !!!
