document.write( "Question 75745: Remove the parentheses in each of the following expressions and simplify when possible.
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document.write( "8d – (-7c -2d)
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Algebra.Com's Answer #54414 by bucky(2189)![]() ![]() ![]() You can put this solution on YOUR website! Simplify: \n" ); document.write( ". \n" ); document.write( "8d – (-7c -2d) \n" ); document.write( ". \n" ); document.write( "The rule is that if a set of parentheses is preceded by a minus sign, you can remove the \n" ); document.write( "parentheses and the minus sign by changing the signs of the terms inside the parentheses. \n" ); document.write( ". \n" ); document.write( "In this problem, when you erase the minus sign in front of the parentheses and then remove \n" ); document.write( "parentheses you must change the signs of -7c and -2d. The problem is then reduced to: \n" ); document.write( ". \n" ); document.write( "8d + 7c + 2d \n" ); document.write( ". \n" ); document.write( "Note that the 2d and the 8d can be added to reduce the problem to: \n" ); document.write( ". \n" ); document.write( "10d + 7c \n" ); document.write( ". \n" ); document.write( "or if your teacher prefers the variables to be in alphabetical order the problem can also \n" ); document.write( "be written as: \n" ); document.write( ". \n" ); document.write( "7c + 10d \n" ); document.write( ". \n" ); document.write( "but that is only a matter of preference. 10d + 7c is just as correct. \n" ); document.write( ". \n" ); document.write( "Hope this helps you understand how to get rid of parentheses if they are preceded by \n" ); document.write( "a negative sign. \n" ); document.write( " |