Barron's error or my error?

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1

<p>I was reviewing matrices in Barron's Math 2 book. Number 3 on page 145 says:</p>

<p>Solve for x:
1 2 -3 (new row) 2 1 3 - X = 5 1 8 (new row) -6 0 5</p>

<p>I keep getting (-4 1 -11)
(8 1 -2) but it isn't an answer choice.</p>

<p>I want to know if it's a mistake or there's something about this that I'm not seeing.</p>

<p>Sorry about my fail attempt at typing up a matrix btw.</p>

2

<p>we got the same answer. I did that more than a time but still get that answer. I think it might be Barron’s error.</p>

3

<p>barrons makes lots of errors @_@ not just in math but i had that with my ap world book last year</p>