document.write( "Question 627340: If 7 is added to twice a number and this sum is multiplied by 6, the result is the same as if the number is multiplied by 7 and 12 is added to the product. Whats the number? \n" ); document.write( "
Algebra.Com's Answer #394907 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! If 7 is added to twice a number and this sum is multiplied by 6, \n" ); document.write( "the result is the same as if the number is multiplied by 7 and 12 \n" ); document.write( " is added to the product. Whats the number? \n" ); document.write( ": \n" ); document.write( "Let n = \"a number\" \n" ); document.write( ": \n" ); document.write( "6(2n + 7) = 7n + 12 \n" ); document.write( "12n + 42 = 7n + 12 \n" ); document.write( "12n - 7n = 12 - 42 \n" ); document.write( "5n = -30 \n" ); document.write( "n = \n" ); document.write( "n = -6 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check \n" ); document.write( "6(2(-6) + 7) = 7(-6) + 12 \n" ); document.write( "6(-12+7) = -42 + 12 \n" ); document.write( "6(-5) = -30 \n" ); document.write( " |