document.write( "Question 1070244: Mary’s age is 8years and her father is 43 years, In how many year’s time will the father be 3 times as old as his daughter. Please, show the steps. Thanks.\r
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Algebra.Com's Answer #685352 by ankor@dixie-net.com(22740)\"\" \"About 
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let y = no. of years for this to be true
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\n" ); document.write( "\" Mary’s age is 8years and her father is 43 years,
\n" ); document.write( "In how many year’s time will the father be 3 times as old as his daughter.\"
\n" ); document.write( "y + 43 = 3(y + 8)
\n" ); document.write( "distribute the 3
\n" ); document.write( "y + 43 = 3y + 24
\n" ); document.write( "subtract y from both sides
\n" ); document.write( "43 = 3y - y + 24
\n" ); document.write( "subtract 24 from both sides
\n" ); document.write( "43 - 24 = 2y
\n" ); document.write( "19 = 2y
\n" ); document.write( "divide both sides by 2
\n" ); document.write( "y = 19/2
\n" ); document.write( "y = 9.5 yrs
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\n" ); document.write( "Usually in these problems you get an integer solution but let's see if this is true.
\n" ); document.write( "Their ages in 9.5 yrs
\n" ); document.write( "43 + 9.5 = 52.5 yrs is Dad's age
\n" ); document.write( "8 + 9.5 = 17.5 is Mary's age
\n" ); document.write( "Check: 3 * 17.5 = 52.5 \n" ); document.write( "
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