document.write( "Question 1124384: Cheryl is eleven more than three times as old as Brad. In 7 years the sum of their ages will be 81. How old is Cheryl ?
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #740705 by ikleyn(52799) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "From the condition, you have this system of 2 equations\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "C = 11 + 3B            (1)\r\n" );
document.write( "\r\n" );
document.write( "(C+7) + (B+7) = 81.    (2)\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Simplify and solve it by substitution.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );