document.write( "Question 1064695: Four time Bett's age plus Emle's age is 72. Five times Errie's age minus Bett's age is 45. How old is Bett and how old is Errie? \n" ); document.write( "

Algebra.Com's Answer #679782 by ikleyn(52810) $\"\"$ $\"About$

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document.write( "4B +  E = 72,   (1)\r\n" );
document.write( "-B + 5E = 45.   (2)\r\n" );
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document.write( "To solve it, express B = 5E - 45 from (2) and then substitute it into equation (1). You will get\r\n" );
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document.write( "4*(5E-45) + E = 72.\r\n" );
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document.write( "Simplify and solve for E.\r\n" );
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document.write( "Then find  B = 5E - 45.\r\n" );
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