document.write( "Question 775118: How would you solve this? \r
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document.write( "The sum of two numbers is 42. Three times the frist number is the same as four times the other number. Find the numbers. \n" );
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Algebra.Com's Answer #472694 by sofiyac(983)![]() ![]() You can put this solution on YOUR website! let first number be x and second one y \n" ); document.write( "x+y=42 \n" ); document.write( "3x=4y \n" ); document.write( "solve the system of equations \n" ); document.write( "x=42-y \n" ); document.write( "3(42-y)=4y \n" ); document.write( "126-3y=4y add 3y to each side \n" ); document.write( "126=7y divide each side by 7 \n" ); document.write( "18=y \n" ); document.write( "so if y is 18 then x=42-y so x=42-18=24 \n" ); document.write( " |