Answers

1. Answer:

   i think its X squared=y squared +4

   Step-by-step explanation:

   thats what i got

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2. Let

   Eq1 : x – 2y = 12

   Eq2 : 4x + 2y = 16

   For substitution, we need to rearrange on of the equations so that we can substitute it in the other. Let’s pick eq2 and rewrite it as 2y = 16 – 4x. We see that eq1 also has 2y in it, so we can plug this new version of eq2 in there.

   3x – (16-4x) = 12

   Now solve for x.

   7x=28, so x=4

   Plug that into either equation to solve for y. You get y=0.

   So your answer is x=4, y=0

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