document.write( "Question 48886: solve: 20/x-3 - 4 = 10/x+3 \n" ); document.write( "

Algebra.Com's Answer #32407 by alka001(14) $\"\"$ $\"About$

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20/x-3 -4=10/x+3
\n" ); document.write( "20/x-3 -10/x+3 =4
\n" ); document.write( "(20(x+3)-10(x-3))/(x-3)(x+3)=4
\n" ); document.write( "10x+90/(x-3)(x+3)=4
\n" ); document.write( "10x+90=(x^2-9)*4
\n" ); document.write( "10x+90=4x^2-36
\n" ); document.write( "4x^2-10x-126=0
\n" ); document.write( "2x^2-5x-63=0
\n" ); document.write( "2x^2-14X+9X-63=0
\n" ); document.write( "2X(X-7)+9(X-7)=0
\n" ); document.write( "(X-7)(2X+9)=0
\n" ); document.write( "X=7,-9/2 \n" ); document.write( "

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