document.write( "Question 197478: please help me solve the following problem. I get very confused with the letters instead of numbers as denominators. 1/a+2/b+3/c \n" ); document.write( "
Algebra.Com's Answer #148084 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
It has to equal something to solve it, like:
\n" ); document.write( "\"+1%2Fa%2B2%2Fb%2B3%2Fc+=+407\"
\n" ); document.write( "It can't be solved the way it is.
\n" ); document.write( "For an equation with 3 unknowns, you need
\n" ); document.write( "2 more equations to solve it.
\n" ); document.write( "If you know what any 2 of the unknowns are,
\n" ); document.write( "you can solve for the remaining one.
\n" ); document.write( "\"a+=+3\"
\n" ); document.write( "\"b+=+7\"
\n" ); document.write( "\"1%2F3+%2B+2%2F7+%2B+3%2Fc+=+407\"
\n" ); document.write( "Multiply both sides by \"21c\". The is the common denominator
\n" ); document.write( "\"7c+%2B+6c+%2B+63+=+407\"
\n" ); document.write( "\"13c+=+344\"
\n" ); document.write( "\"c+=+26.461\"
\n" ); document.write( "
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