document.write( "Question 792056: 79=-3(-4a-3)-2a \n" ); document.write( "

Algebra.Com's Answer #479838 by waynest(281) $\"\"$ $\"About$

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79 = -3(-4a - 3) - 2a
\n" ); document.write( "79 = 12a + 9 - 2a
\n" ); document.write( "79 = 10a + 9
\n" ); document.write( "79 - 9 = 10a + 9 - 9
\n" ); document.write( "70 = 10a
\n" ); document.write( "70/10 = 10a/10
\n" ); document.write( "7 = a\r
\n" ); document.write( "\n" ); document.write( "check:
\n" ); document.write( "79 = -3(-4(7) -3) - 2(7)
\n" ); document.write( "79 = -3(-28 - 3) - 14
\n" ); document.write( "79 = -3(-31) - 14
\n" ); document.write( "79 = 93 - 14
\n" ); document.write( "79 = 79 \n" ); document.write( "

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