SOLUTION: elimination method 3(a-b)=15 4a=b+1

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Question 44546: elimination method
3(a-b)=15
4a=b+1
Answer by Nate(3500) About Me  (Show Source):
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3(a - b) = 15
3a - 3b = 15
+
4a = b + 1
4a - b = 1
-12a + 3b = -3
=
-9a = 12
a = -4/3
so:
4a = b + 1
4(-4/3) = b + 1
(-16/3) = b + 1
(-19/3) = b
Check:
'a' are x-values
'b' are y-values
Answer: (-1 1/3, -6 1/3)
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