document.write( "Question 1153494: Three times Jack’s age +2 times Jill’s age equals 64. Jack is also two times Jill’s age. how old is Jack? \n" ); document.write( "

Algebra.Com's Answer #775715 by MathTherapy(10552) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "Three times Jack’s age +2 times Jill’s age equals 64. Jack is also two times Jill’s age. how old is Jack?
\n" ); document.write( "

Let Jack's age be J, and Jill's L
\n" );
document.write( "Then 3J + 2L = 64 ----- eq (i)
\n" );
document.write( "Also, J = 2L ----- eq (ii)
\n" );
document.write( "3J + J = 64 ----- Substituting 2L for J in eq (i)
\n" );
document.write( "4J = 64
\n" );
document.write( "J, or  \n" );
document.write( "

\n" );