document.write( "Question 662793: can you help me simplify the expression: 3(7 + x) + x
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Algebra.Com's Answer #412475 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "Re TY
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document.write( "What is being asked for in doing questions of this type, is not so much a question of understanding but 
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document.write( "'Following the Rules' so to speak as to simplifying by doing the steps in a particular order.
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document.write( "\"PEMDAS\", which is turned into the phrase \"Please Excuse My Dear Aunt Sally\".  
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document.write( "It stands for \"Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction\".
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document.write( "One begins by 'removing' the parenthesis by distributing the -2, in this case,
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document.write( "multiplying each term inside the parenthesis by -2\r
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document.write( "'Distributing' the -2  and combining Like Terms
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document.write( " -16x + 6 + 2x
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document.write( "  -14x + 6\r
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document.write( "'Distributing' the 3 and combining Like Terms
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document.write( "3(7 + x) + x
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document.write( " 21 + 3x + x
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