document.write( "Question 1088521: Sam spent 40 percent of his money and an addition $13 on some shirts. He spent 70 percent of the remaining money and an additional $68 on a radio. If he had $126 left, how much money did Sam have at first? \n" ); document.write( "
Algebra.Com's Answer #702807 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! Sam spent 40 percent of his money and an addition $13 on some shirts. \n" ); document.write( " He spent 70 percent of the remaining money and an additional $68 on a radio. If he had $126 left, how much money did Sam have at first? \n" ); document.write( ": \n" ); document.write( "let a = the original amt \n" ); document.write( "the equation \n" ); document.write( "a = (.40a+13) + (.70(a - (.40a+13)) + 68) + 126 \n" ); document.write( "a = (.40a+13) + (.70(a - .40a - 13)) + 68) + 126 \n" ); document.write( " a = (.40a+13) + (.70(.6a - 13)) + 68) + 126 \n" ); document.write( " a = (.40a+13) + (.42a - 9.1) + 68 + 126 \n" ); document.write( " a = .40a + .42a + 13 - 9.1 + 68 + 126 \n" ); document.write( " a = .82a + 197.9 \n" ); document.write( " a - .82a = 197.9 \n" ); document.write( ".18a = 197.9 \n" ); document.write( " a = 197.9/.18 \n" ); document.write( " a = $1099.44 he had at first \n" ); document.write( " |