document.write( "Question 11815: Please help me try and understand how to do this problem. I am not sure how to go about it. My book gives horrible examples.\r
\n" ); document.write( "\n" ); document.write( "Given: f(x) = -2/3 x + 15
\n" ); document.write( "x when f(x) = 26
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Algebra.Com's Answer #6060 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
f(x) = -2/3 x + 15\r
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\n" ); document.write( "\n" ); document.write( "so, when f(x) = 26, we have 26 = -(2/3)x + 15
\n" ); document.write( "11 = -(2/3)x
\n" ); document.write( "or
\n" ); document.write( "(2/3)x = -11
\n" ); document.write( "2x = -33
\n" ); document.write( "x = -33/2\r
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\n" ); document.write( "\n" ); document.write( "jon.
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