document.write( "Question 1032879: 3 times the age of Kofi is 4 more than the age of Yaw. In three years, the sum of their ages will b 70yrs, find their present age. \n" ); document.write( "
Algebra.Com's Answer #647465 by stanbon(75887)\"\" \"About 
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3 times the age of Kofi is 4 more than the age of Yaw. In three years, the sum of their ages will b 70yrs, find their present age.
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\n" ); document.write( "Equations:
\n" ); document.write( "3K = Y + 4
\n" ); document.write( "K+3 + Y+3 = 70
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\n" ); document.write( "Substitute for \"K\" and solve for \"Y\"::
\n" ); document.write( "(Y+4)/3 + 3 + Y+3 = 70
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\n" ); document.write( "Y+4 + 9 + 3Y + 9 = 210
\n" ); document.write( "4Y + 22 = 210
\n" ); document.write( "4Y = 188
\n" ); document.write( "Y = 47 yrs
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\n" ); document.write( "3K = Y+4
\n" ); document.write( "K = (51/3) yrs = 17 yrs (Kofi's age now)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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