Answer:
or 
Step-by-step explanation:
Given


Required
Determine the solution
We'll solve using elimination method.
Subtract the first equation from the second:







Make x the subject:



Substitute
for x in the first equation



Make y the subject




Hence, the solution is:
or 
This is a list of all the prime numbers less than 20 in numerical order
Answer:
4X+12 y
Step-by-step explanation:
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Square root (8-0)^2 + (8+7)^2
square root 64+15^2
=8+15
= 23