document.write( "Question 236179: I don't understand the inverse operations when fractions are involved\r
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document.write( "the problem I am working on is:\r
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document.write( "x/12 +8=105\r
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document.write( "I started: 105-8 = 97,
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document.write( "but I don't know the next step should I multiply or divide by 12?\r
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document.write( "thanks for your help,
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document.write( "Katie \n" );
document.write( "
Algebra.Com's Answer #173881 by jim_thompson5910(35256) ![]() You can put this solution on YOUR website! When you say \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In order to isolate 'x', you need to \"undo\" every operation that is being done on 'x'. So in this case, you need to undo that division (note: in the first step, you undid the addition of 8 by subtracting 8 from both sides). Since the opposite of division is multiplication, this means you need to multiply both sides by 12 like so:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and simplify\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So the solution is |