document.write( "Question 178949: Simplify by removing grouping symbols and combining like terms.\r
\n" ); document.write( "\n" ); document.write( "(3x+5)+(2x-9)-(4x+3)\r
\n" ); document.write( "\n" ); document.write( "Grouping symbols remove: \r
\n" ); document.write( "\n" ); document.write( "Like terms combined: \n" ); document.write( "
Algebra.Com's Answer #133886 by colliefan(242)\"\" \"About 
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One key is to simplify any expression that has a minus sign before a grouping symbol. One example is the last part of this expression. Rewrite that so that you make the minus sign a plus and make sure that the negative gets applies to all the terms in the group. For example:\r
\n" ); document.write( "\n" ); document.write( "(3x+5)+(2x-9)-(4x+3)\r
\n" ); document.write( "\n" ); document.write( "(3x+5)+(2x-9) + -1*(4x+3)
\n" ); document.write( "(3x+5)+(2x-9) + (-1)*4x+(-1)*3
\n" ); document.write( "(3x+5)+(2x-9) + -4x-3\r
\n" ); document.write( "\n" ); document.write( "The other areas in parentheses do not have a factor that needs to be multiplied or a minus sign in front to simplify and so the parentheses can be dropped without changing the meaning of the expression.\r
\n" ); document.write( "\n" ); document.write( "3x+5+2x-9 + -4x-3\r
\n" ); document.write( "\n" ); document.write( "Then, reorganize to put like terms together:\r
\n" ); document.write( "\n" ); document.write( "3x+2x-4x+5-9+-3\r
\n" ); document.write( "\n" ); document.write( "Then, combine like terms:\r
\n" ); document.write( "\n" ); document.write( "1x-7 or x-7\r
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