document.write( "Question 62879: in this equation i need to use substitution!!
\n" ); document.write( "please help me!!!
\n" ); document.write( "thank you!\r
\n" ); document.write( "\n" ); document.write( "y=3x
\n" ); document.write( "x=2y=-21\r
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Algebra.Com's Answer #43691 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
Y=2X IS A GOOD EQUATION.
\n" ); document.write( "HOWEVER X=2Y=-21 IS NOT A VALID EQUATION. TOO MANY = SIGNS. CORRECT & RESUBMIT.
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