document.write( "Question 1146709: Manuel is 43 years old. Delaney is 30 years old. How many years ago was Manuel's age 2 times Delaney's age? \n" ); document.write( "

Algebra.Com's Answer #767990 by josgarithmetic(39618) $\"\"$ $\"About$

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m, Manuel
\n" ); document.write( "d, Delaney
\n" ); document.write( "x, how many years ago
\n" ); document.write( "p, factor
\n" ); document.write( "-
\n" ); document.write( "-\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"m-x=p%28d-x%29\"$ \r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( " $\"m-x=pd-px\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"m-pd=x-px\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"pd-m=px-x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%28p-1%29x=pd-m\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight_green%28x=%28pd-m%29%2F%28p-1%29%29\"$ \r
\n" ); document.write( "\n" ); document.write( "Make the substitutions $\"system%28m=43%2Cd=30%2Cp=2%29\"$ . \n" ); document.write( "

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