I don’t see the problems you want me to solve. Sorry
ANSWER

and
e have
EXPLANATION


Let us make y the subject and call it equation (2)


We put equation (2) in to equation (1)



Simplify to get,


Divide both sides by 31,



We put this value in to equation (2) to get,


We collect LCM to obtain,


I could be 7- or it could be just 7
Answer:
1000
Step-by-step explanation:
1200*5/6=1000