document.write( "Question 52258: What am I doing wrong? How would you set this up as an equation?\r
\n" ); document.write( "\n" ); document.write( "The Michigan plant of DynoTech Industries is four times as old as the Ohio plant. If the difference in the ages of the two plants is 9 years, what is the age of each?\r
\n" ); document.write( "\n" ); document.write( "x+4x=y-9\r
\n" ); document.write( "\n" ); document.write( "I didn't bring my text book, but I'll find out if I have another problem.
\n" ); document.write( "Thank You \n" ); document.write( "
Algebra.Com's Answer #34815 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
DynoTech Industries = 4 X Ohio plant = 4n
\n" ); document.write( "Ohio = n
\n" ); document.write( "If the difference in the ages of the two plants is 9 years, than
\n" ); document.write( "Dynotech - Ohio = 9
\n" ); document.write( ".
\n" ); document.write( "So,
\n" ); document.write( "(4 x Ohio) - (Ohio) = 9
\n" ); document.write( "4n - n = 9 [Solve for n]
\n" ); document.write( "3n=9
\n" ); document.write( "n=3 is the age of the Ohio plant
\n" ); document.write( ".
\n" ); document.write( "checking:
\n" ); document.write( "Dynatech - Ohio = 9
\n" ); document.write( "(4)(3)-(3) = 9
\n" ); document.write( "12-3=9
\n" ); document.write( "9=9 [Checks out]\r
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