document.write( "Question 1207907: Which of the expressions is not equal to the other three?\r
\n" ); document.write( "\n" ); document.write( "A. 7[a +2]\r
\n" ); document.write( "\n" ); document.write( "B. 20 + 8a -6 -a\r
\n" ); document.write( "\n" ); document.write( "C.17 +3[a -1] + 4a\r
\n" ); document.write( "\n" ); document.write( "D. 2a + 5[a -1] + 8
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Algebra.Com's Answer #846038 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Simplify each expression by combining like terms and/or using the distributive property to get rid of parentheses.

\n" ); document.write( "A. 7(a+2) = 7(a)+7(2) = 7a+14
\n" ); document.write( "B. 20+8a-6-a = (8a-a)+(20-6) = 7a+14
\n" ); document.write( "C. 17+3(a-1)+4a = 17+3(a)+3(-1)+4a = 17+3a-3+4a = (3a+4a)+(17-3)=7a+14
\n" ); document.write( "D. 2a+5(a-1)+8 = 2a+5(a)+5(-1)+8 = 2a+5a-5+8 = 7a+3

\n" ); document.write( "ANSWER: D

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