document.write( "Question 1014948: Jacob is 21 years younger than twice marion's age. Jacob is 13. How old is marion? \n" ); document.write( "

Algebra.Com's Answer #631374 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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let j = Jacob's present age
\n" ); document.write( "let m = Marion's
\n" ); document.write( ":
\n" ); document.write( "Write an equation for each statement
\n" ); document.write( ":
\n" ); document.write( "Jacob is 21 years younger than twice Marion's age.
\n" ); document.write( "j = 2m - 21
\n" ); document.write( " Jacob is 13.
\n" ); document.write( "j = 13
\n" ); document.write( " How old is Marion?
\n" ); document.write( "replace j with 13 in the 1st equation
\n" ); document.write( "13 = 2m - 21
\n" ); document.write( "add 21 to both sides
\n" ); document.write( "13 + 21 = 2m
\n" ); document.write( "34 = 2m
\n" ); document.write( "divide both sides by 2
\n" ); document.write( "m = 34/2
\n" ); document.write( "m = 17 yrs is Marion's age
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check the solution in the 1st statement
\n" ); document.write( "\" Jacob is 21 years younger than twice Marion's age. \"
\n" ); document.write( "13 = 2(17) - 21
\n" ); document.write( "13 = 34 - 21 \n" ); document.write( "

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