document.write( "Question 130051: I'm having trouble with this.....Thank you...\r
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document.write( " What multiplier should be used for each of the following equations to eliminate one unknown by subtraction?\r
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document.write( " 3x - y = 7 2x + 7y = 42 \n" );
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Algebra.Com's Answer #95014 by checkley71(8403)![]() ![]() ![]() 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. \n" ); document.write( " |