Is thsi a solution of an ordered pair

(4, -1)
4x = -17 - y
2x = -12 -4y
I say yes ?
Is this how you do it.

4(4) = -17 - -1 =
2(4) = -12 - 4(-1)

4 answers

Yes, and it is a solution
16 = 16
and
8 = 8
well done !
Hey, wait a minute. I was not careful with signs
16 is not -16
and 8 is not -8
I will solve the original in next post
4x = -17 - y
2x = -12 -4y
Let's find the point where these lines really do cross.
4 x = -17 -1 y
4 x = -24 -8 y
--------------
0 x = 7 +7 y
y = -1
then
2x = -12 -4 (-1)
2 x = -8
x = -4
so the solution is actually
(-4 , -1)
When you try that pair you will get
-16 = -16
and
-8 = -8
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