document.write( "Question 1113027: Marylin's age in 7 years will be 3 times what it was 11 years ago. how old is marylin \n" ); document.write( "

Algebra.Com's Answer #728080 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = her age now
\n" ); document.write( " $\"+x+%2B+7+\"$ = her age in 7 yrs
\n" ); document.write( " $\"+x+-+11+\"$ = her age 11 yrs ago
\n" ); document.write( "-------------------------------------
\n" ); document.write( " $\"+x+%2B+7+=+3%2A%28+x+-+11+%29+\"$
\n" ); document.write( " $\"+x+%2B+7+=+3x+-+33+\"$
\n" ); document.write( " $\"+2x+=+40+\"$
\n" ); document.write( " $\"+x+=+20+\"$
\n" ); document.write( "-----------------
\n" ); document.write( "She is 20 yrs old
\n" ); document.write( "------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+20+%2B+7+=+3%2A%28+20+-+11+%29+\"$
\n" ); document.write( " $\"+27+=+3%2A9+\"$
\n" ); document.write( " $\"+27+=+27+\"$
\n" ); document.write( "OK \n" ); document.write( "

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