document.write( "Question 1153652: Jason's age is 3 times Shauna's present age.In 4 years' time, the sum of their ages will be 56 years. Find their present age \n" ); document.write( "
Algebra.Com's Answer #775910 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "let Jason's age be \"x\" and Shauna's age \"y\"\r
\n" ); document.write( "\n" ); document.write( "if Jason's age is \"3+\"times Shauna's present age, we have\r
\n" ); document.write( "\n" ); document.write( "\"x=3y\" ....eq.1\r
\n" ); document.write( "\n" ); document.write( "if in \"4+\"years' time, the \"sum\" of their ages will be \"56\" years, we have\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%2B%28y%2B4%29=56\"
\n" ); document.write( "\"x%2By%2B8=56\"
\n" ); document.write( "\"x%2By=56-8\"
\n" ); document.write( "\"x%2By=48\".......substitute \"x\" from eq.1
\n" ); document.write( "\"3y%2By=48\"
\n" ); document.write( "\"4y=48\"
\n" ); document.write( "\"y=48%2F4\"
\n" ); document.write( "\"y=12\"\r
\n" ); document.write( "\n" ); document.write( "go to eq.1\r
\n" ); document.write( "\n" ); document.write( "\"x=3y\" ....eq.1,substitute \"y\"
\n" ); document.write( "\"x=3%2A12\"
\n" ); document.write( "\"x=36\" \r
\n" ); document.write( "\n" ); document.write( "their present age: Jason's is \"36\" and Shauna's is \"12\"\r
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