document.write( "Question 200918: 3^x -4=2 \n" ); document.write( "

Algebra.Com's Answer #151136 by RAY100(1637) $\"\"$ $\"About$

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3^x -4 =2
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\n" ); document.write( "3^x = 6
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\n" ); document.write( "take log both sides
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\n" ); document.write( "log(3^x) =log 6
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\n" ); document.write( "or ,,,,,,x log 3 = log 6
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\n" ); document.write( "x= log 6 / log 3
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\n" ); document.write( "x= 1.631
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\n" ); document.write( "check,,,,,,3^(1.631) =6,,,,,ok
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\n" ); document.write( "if problem was ,,,,,3^(x-4) = 2
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\n" ); document.write( "(x-4) log 3 = log 2
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\n" ); document.write( "x-4 = log2/log3 = .631
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\n" ); document.write( "x= 4.631
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\n" ); document.write( "3^(4.631-4) =2,,,,, ok \n" ); document.write( "

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