document.write( "Question 476118: I was looking on a website that teaches linear algebra and it had this problem:\r
\n" ); document.write( "\n" ); document.write( "(3x - 15)/(2x + 1) = 0\r
\n" ); document.write( "\n" ); document.write( "And it says the answer is: x = 5\r
\n" ); document.write( "\n" ); document.write( "But I don't understand how to get that answer so I was hoping someone can give me step by step directions for it.
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Algebra.Com's Answer #326519 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
This doesn't look like linear algebra...linear algebra deals with matrices, determinants, vector spaces, and so on.\r
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\n" ); document.write( "\n" ); document.write( "Anyway, we set the numerator to zero, i.e. set 3x - 15 = 0. Solving for x we get x = 5. We want to make sure the denominator is nonzero so we can plug in x = 5 into the denominator. The denominator is nonzero, so x = 5 works.
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