document.write( "Question 394453: If a number is multiplied by 7 and this product is increased by 42, the result is 87 greater than twice th opposite of the number. Find the number
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Algebra.Com's Answer #279925 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! If a number is multiplied by 7 and this product is increased by 42, \n" ); document.write( " the result is 87 greater than twice the opposite of the number. \n" ); document.write( ": \n" ); document.write( "Let x = \"a number\" \n" ); document.write( "then \n" ); document.write( "-x = \"the opposite of the number\" \n" ); document.write( ": \n" ); document.write( "Just write that it says \n" ); document.write( "7x + 42 = 2(-x) + 87 \n" ); document.write( "7x + 42 = -2x + 87 \n" ); document.write( "7x + 2x = 87 - 42 \n" ); document.write( "9x = 45 \n" ); document.write( "x = \n" ); document.write( "x = 5 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution in original statement \n" ); document.write( "7(5) + 42 = 2(-5) + 87 \n" ); document.write( "35 + 42 = -10 + 87 \n" ); document.write( "77 = 77\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |