document.write( "Question 215467: So I have to do a problem right, they gave an example but I don't understand how they got their answer. I'm in geometry so they expect me to know it already. Here is the example problem:
\n" ); document.write( "3n+3=2n+6
\n" ); document.write( "3n=2n+3
\n" ); document.write( "n=3\r
\n" ); document.write( "\n" ); document.write( "How did they get n=3??
\n" ); document.write( "I don't get it. \n" ); document.write( "
Algebra.Com's Answer #162809 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "You're in geometry, but this is algebra. \r\n" );
document.write( "Do you remember any algebra?\r\n" );
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document.write( "n stands for an unknown number\r\n" );
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document.write( "3n + 3 = 2n + 6\r\n" );
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document.write( "There are 2 terms on the left, 3n and 3 \r\n" );
document.write( "3n is a \"letter term\" and 3 is a \r\n" );
document.write( "\"plain number\" term.\r\n" );
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document.write( "There are two terms on the right, 2n and 6\r\n" );
document.write( "2n is a \"letter term\" and 3 is a \"plain number\"\r\n" );
document.write( "term.\r\n" );
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document.write( "We want ONLY \"letter terms\" on the left\r\n" );
document.write( "and ONLY \"plain number\" terms on the right.\r\n" );
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document.write( "We get rid of the number term 3 on the left\r\n" );
document.write( "by subtracting 3 from both sides like this:\r\n" );
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document.write( "3n + 3 = 2n + 6 \r\n" );
document.write( "   - 3      - 3\r\n" );
document.write( "---------------\r\n" );
document.write( "3n + 0 = 2n + 3\r\n" );
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document.write( "We can eliminate the \"+ 0\" and just have\r\n" );
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document.write( "    3n = 2n + 3\r\n" );
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document.write( "Now we get rid of the letter term 2n on the right\r\n" );
document.write( "side by subtracting 2n from both sides like this:\r\n" );
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document.write( "    3n = 2n + 3\r\n" );
document.write( "   -2n  -2n \r\n" );
document.write( "   ------------\r\n" );
document.write( "    1n =  0 + 3\r\n" );
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document.write( "We can eliminate the 0 and have\r\n" );
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document.write( "    1n = 3\r\n" );
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document.write( "Now we can eliminate the 1 because there is\r\n" );
document.write( "no difference between n and 1n.  So we can\r\n" );
document.write( "just write\r\n" );
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document.write( "     n = 3 \r\n" );
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document.write( "This is algebra you're doing,\r\n" );
document.write( "not geometry, but there is algebra in\r\n" );
document.write( "geometry.\r\n" );
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document.write( "Edwin
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