document.write( "Question 752277: Please help me figure out the equation for this word problem.
\n" ); document.write( "Marla's Grandma is currently 3 times older than Marla, but 25 years from now Marla will be half her Grandma's age. How old is the Grandma right now? \n" ); document.write( "
Algebra.Com's Answer #458015 by ankor@dixie-net.com(22740)\"\" \"About 
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Marla's Grandma is currently 3 times older than Marla,
\n" ); document.write( "g = 3m
\n" ); document.write( ":
\n" ); document.write( " but 25 years from now Marla will be half her Grandma's age.
\n" ); document.write( "m + 25 = \"1%2F2\"(g+25)
\n" ); document.write( "Multiply both sides by 2, resulting in
\n" ); document.write( "2(m+25) = g + 25
\n" ); document.write( "2m + 50 = g + 25
\n" ); document.write( "2m = g + 25 - 50
\n" ); document.write( "2m = g - 25
\n" ); document.write( "Replace g with 3m
\n" ); document.write( "2m = 3m - 25
\n" ); document.write( "25 = 3m - 2m
\n" ); document.write( "25 = m
\n" ); document.write( ":
\n" ); document.write( " How old is the Grandma right now?
\n" ); document.write( "g = 3(25)
\n" ); document.write( "g = 75 yrs \n" ); document.write( "
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