document.write( "Question 124423: How do you solve for 3/4 - 3m/4m+6 = 8? \r
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document.write( "I'm really struggling with this problem, can you help me? \n" );
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Algebra.Com's Answer #91276 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! How do you solve for 3/4 - 3m/4m+6 = 8? \n" ); document.write( ": \n" ); document.write( "Assume the problem is: \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "We can see the common denominator is 4(4m+6); multiply thru by that: \n" ); document.write( "4(4m+6)* \n" ); document.write( ": \n" ); document.write( "Cancel out the denominators and you have: \n" ); document.write( "3(4m+6) - 4(3m) = 32(4m+6) \n" ); document.write( ": \n" ); document.write( "Multiply what is inside the brackets: \n" ); document.write( "12m + 18 - 12m = 128m + 192 \n" ); document.write( ": \n" ); document.write( "Combine the \"m&m's\" on the left and the numbers on the right \n" ); document.write( "12m - 12m - 128m = 192 - 18 \n" ); document.write( ": \n" ); document.write( "-128m = +174 \n" ); document.write( "m = \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "This first thing one thinks when you get an answer like -87/64, is where did I go wrong? \n" ); document.write( ": \n" ); document.write( "Well maybe that is the right answer. Take the time to substitute this for m in the original equation \n" ); document.write( ": \n" ); document.write( "First the numerator; 3m: 3* \n" ); document.write( "Then the denominator; 4* \n" ); document.write( ": \n" ); document.write( "When dividing fractions invert the dividing fraction and multiply so we have: \n" ); document.write( " \n" ); document.write( "the decimal equiv of \n" ); document.write( "so we have: \n" ); document.write( ".75 - (-7.25) = (minus a minus is a plus) \n" ); document.write( ".75 + 7.25 = +8!!!, we are right, that is the solution \n" ); document.write( ": \n" ); document.write( "Did all this make sense to you, (perhaps lessen the struggle). Any questions? \n" ); document.write( " |