document.write( "Question 130051: I'm having trouble with this.....Thank you...\r
\n" ); document.write( "\n" ); document.write( " What multiplier should be used for each of the following equations to eliminate one unknown by subtraction?\r
\n" ); document.write( "\n" ); document.write( " 3x - y = 7 2x + 7y = 42
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Algebra.Com's Answer #95014 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
MULTIPLYING THE FIRST EQUATION BY -7 ALLOWS YOU TO SUBTRACT THESE 2 EQUQTIONS.
\n" ); document.write( "OR YOU CAN MULTIPLY THE FIRST EQUATION BY 2 & THE SECOND ONE BY 3 & SUBTRACT.
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