document.write( "Question 227605: what equation could help me solve this problem??
\n" ); document.write( "Briana and her sister Molly both want to buy the same model bicycle. Briana needs $73 more before she can afford the bike. Molly needs $65 more. If they combine their money, they will have just enough to buy one bicycle that they could share. What is the cost of the bicycle? \n" ); document.write( "
Algebra.Com's Answer #169086 by ankor@dixie-net.com(22740)\"\" \"About 
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what equation could help me solve this problem??
\n" ); document.write( "Briana and her sister Molly both want to buy the same model bicycle. Briana needs $73 more before she can afford the bike. Molly needs $65 more. If they combine their money, they will have just enough to buy one bicycle that they could share. What is the cost of the bicycle?
\n" ); document.write( ":
\n" ); document.write( "Let x = cost of bike
\n" ); document.write( ":
\n" ); document.write( "It says,\"Briana needs $73 more before she can afford the bike.\", so we can say:
\n" ); document.write( "(x - 73) = B, $amt
\n" ); document.write( ":
\n" ); document.write( "\" Molly needs $65 more.\"
\n" ); document.write( "(x - 65) = M's $amt
\n" ); document.write( ":
\n" ); document.write( "The equation: B's amt + M's amt = cost of bike
\n" ); document.write( "(x - 73) + (x - 65) = x
\n" ); document.write( "2x - 138 = x
\n" ); document.write( "2x - x = 138
\n" ); document.write( "x = $138 \n" ); document.write( "
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