document.write( "Question 70401: Three times one number added to another number is 18. Twice the first number number minus the other number is 12. Find the numbers. \r
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document.write( "I ahve 5 and 9. Is this correct? \n" );
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Algebra.Com's Answer #50216 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! 3x+y=18 y=18-3x \n" ); document.write( "2x-y=12 now substitute (18-3x) for y in this equation 7 solve for x \n" ); document.write( "2x-(18-3x)=12 \n" ); document.write( "2x-18+3x=12 \n" ); document.write( "5x=30 \n" ); document.write( "x=30/5 \n" ); document.write( "x=6 answer now substitute 6 for x & solve for y \n" ); document.write( "3*6+y=18 \n" ); document.write( "18+y=18 \n" ); document.write( "y=18-18 \n" ); document.write( "y=0 answer \n" ); document.write( " \n" ); document.write( " |