document.write( "Question 1118616: Last question of the day. I need to check my work on the following equation: \r
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document.write( "0.03(3-7x)-0.02(1-x)=0.64\r
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document.write( "I solved the equation which is -3, but I cannot for the life of me figure out how to check this answer. I have checked my textbook, and see no examples. I know I should place -3 in place of x, but it doesn't seem to work. \r
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document.write( "I have tried 0.03(3-7(-3))-0.02(1-(-3))=0.64 and 0.03(3-7-3)-0.02(1-3)=0.64\r
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document.write( "each do not produce a TRUE answer.\r
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document.write( "Thank you for your help. \n" );
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Algebra.Com's Answer #733978 by ikleyn(52814)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "To check your answer, simply substitute the value x= -3 into the expression. You will get\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "0.03*(3-7*(-3)) - 0.02*(1-(-3)) = 0.03*(3+21) - 0.02*(1+3) = 0.03*24 - 0.02*4 = 0.72 - 0.08 = 0.64.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "How you do present your calculations, shows that you have serious problem with arithmetic.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Simply saying, you don't know the basic arithmetic rules.\r\n" ); document.write( "\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "----------------- \n" ); document.write( "Comment from student: Yes, this is my first math class in 20 years. I’m learning what I didn’t in High School. Thank you for the clarification. \n" ); document.write( "-----------------\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "My response: O-o-o ! I understand.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then come to this forum with your questions/problems often !\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "We will be glad to help you !\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " H a p p y l e a r n i n g ! !\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |