document.write( "Question 790370: -9+|1/2a|=7 \n" ); document.write( "

Algebra.Com's Answer #479114 by waynest(281) $\"\"$ $\"About$

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-9 + |1/2a| = 7
\n" ); document.write( "- 9 + 9 + |1/2a| = 7 + 9
\n" ); document.write( "|1/2a| = 16
\n" ); document.write( "1/2a = 16
\n" ); document.write( "2(1/2a) = 2(16)
\n" ); document.write( "a = 32\r
\n" ); document.write( "\n" ); document.write( "check:
\n" ); document.write( "-9 + |1/2(32)| = 7
\n" ); document.write( "-9 + |16| = 7
\n" ); document.write( "-9 + 16 = 7
\n" ); document.write( "7 = 7 \n" ); document.write( "

\n" );