document.write( "Question 213838: Please help me solve this equation: Three times a first number decreased by a second number is 1. The first number increased by twice the second number is 12. Find the numbers\r
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\n" ); document.write( "I tried: Let x equal 1st number
\n" ); document.write( " Let y equal 2nd number
\n" ); document.write( " 3x-y=1
\n" ); document.write( " 3x+2y=12
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Algebra.Com's Answer #161533 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
3x-y=1 multiply by 2 & add.
\n" ); document.write( "x+2y=12
\n" ); document.write( "6x-2y=2
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\n" ); document.write( "7x=14
\n" ); document.write( "x=14/7
\n" ); document.write( "x=2 ans.
\n" ); document.write( "2+2y=12
\n" ); document.write( "2y=12-2
\n" ); document.write( "2y=10
\n" ); document.write( "y=10/2
\n" ); document.write( "y=5 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "3*2-5=1
\n" ); document.write( "6-5=1
\n" ); document.write( "1=1
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