document.write( "Question 1048928: Plunbing service charges $35 dollars per hour plus a $25 dollar travel charge for a service call. Good Guys Plumbing charges $40 dollars per hour with no travel charge How long must a service call be for the same two companies to charge the same \n" ); document.write( "
Algebra.Com's Answer #664513 by addingup(3677)\"\" \"About 
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25+35x = 40x reverse the equation
\n" ); document.write( "40x = 25+35x subtract 35x on both sides
\n" ); document.write( "5x = 25
\n" ); document.write( "x = 5 hours. At 5 hours the cost is the same. Note that after 5 hours Plumbing Services is cheaper. You can do this easily by plugging in numbers into the equation.
\n" ); document.write( "Example: 6 hours
\n" ); document.write( "Plumbing = 25+35(6) = 235
\n" ); document.write( "Good Guys = 40*6 = 240
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