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One and ONLY ONE problem/question per post.
It is the RULE, the POLICY and the REQUIREMENT of this forum.
It is written in this page
https://www.algebra.com/tutors/students/ask.mpl?action=ask_question&topic=Equations&return_url=http://www.algebra.com/algebra/homework/equations/
from which you post your problems.
It is assumed that you read these rules before posting.
It is also assumed that you do understand what is written in that page and follow the rules.
Those who violate them, work against their own interests.
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So P L E A S E post your problems S E P A R A T E L Y (!)
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I can admit 2 homogeneous questions in one problem.
I even can admit 3 homogeneous questions in one problem.
But having 2 problems in one post with 6 questions total is just FAR BEYOND of common sense.