document.write( "Question 333422: For the problem I have to solve it says I have to write a system of equations involving two equations in two variables then to solve the system. Here is the problem: Jean is twice as old as Michael. The sum of their ages 3 years ago was 45 years. Find their ages now.
\n" ); document.write( "I tried to solve it without the sytem of equations and i got the answer of jean:32 and Michael:16 but then I realized I would get the question wrong if I didn't show the system of equations. Please help me.
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Algebra.Com's Answer #238918 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Here it is step-by-step, it's not that hard.
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\n" ); document.write( "Let j = Jean's present age
\n" ); document.write( "let m = Michael's present age
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\n" ); document.write( "Write an equation for each statement
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\n" ); document.write( "\"Jean is twice as old as Michael.\"
\n" ); document.write( "j = 2m
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\n" ); document.write( "\"The sum of their ages 3 years ago was 45 years.\"
\n" ); document.write( "(j-3) + (m-3) = 45
\n" ); document.write( "Simplify
\n" ); document.write( "j + m - 6 = 45
\n" ); document.write( "j + m = 45 + 6
\n" ); document.write( "j + m = 51
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\n" ); document.write( "From the 1st statement equation, replace j with 2m
\n" ); document.write( "2m + m = 51
\n" ); document.write( "3m = \"51%2F3\"
\n" ); document.write( "m = 17 yrs is Michael's present age
\n" ); document.write( "then we know j = 2m, therefore
\n" ); document.write( "j = 2(17)
\n" ); document.write( "j = 34 yrs is Jean's present age
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\n" ); document.write( "Prove this using the 2nd statment
\n" ); document.write( "\"The sum of their ages 3 years ago was 45 years.\"
\n" ); document.write( "(34-3) + (17-3) =
\n" ); document.write( "31 + 14 = 45
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\n" ); document.write( "Did this make sense to you?\r
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