document.write( "Question 145494: The sum of twho numbers is 89. Adding four times the first number to the second number gives 155. WHich one of the follwoing equaitons expresses this problem algebraically?
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Algebra.Com's Answer #106145 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The sum of two numbers is 89. \n" ); document.write( "x + y = 89 \n" ); document.write( "x = (89-y) \n" ); document.write( ": \n" ); document.write( " Adding four times the first number to the second number gives 155. \n" ); document.write( "4x + y = 155 \n" ); document.write( ": \n" ); document.write( "y = 155 - 4x; is one of the possible equations \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "To solve it, substitute (89-y) for x: \n" ); document.write( "y = 155 - 4(89-y) \n" ); document.write( ": \n" ); document.write( "y = 155 - 356 + 4y \n" ); document.write( ": \n" ); document.write( "y - 4y = -201 \n" ); document.write( ": \n" ); document.write( "-3y = -201 \n" ); document.write( "y = \n" ); document.write( "y = +67; and x = (89-67) = 22\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |