document.write( "Question 58095: Thank you in advance!\r
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document.write( "Jill is 8 years older than her brother Curt. Four years from now, Jill will be twice as old as Curt. How old is each at the present time?\r
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Algebra.Com's Answer #39743 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Jill is 8 years older than her brother Curt. Four years from now, Jill will be twice as old as Curt. How old is each at the present time? \n" ); document.write( ": \n" ); document.write( "J = Jill's present age; C = Curt's present age \n" ); document.write( ": \n" ); document.write( "The equation for this statement: \"Jill is 8 years older than her brother Curt.\" \n" ); document.write( "J = (C + 8) \n" ); document.write( ": \n" ); document.write( "\"Four years from now, Jill will be twice as old as Curt.\" \n" ); document.write( "(J + 4) = 2(C + 4) \n" ); document.write( "J + 4 = 2C + 8 \n" ); document.write( ": \n" ); document.write( "Substitute (C + 8) for J \n" ); document.write( "(C+8) + 4 = 2C + 8 \n" ); document.write( "C + 12 = 2C + 8 \n" ); document.write( "C - 2C = 8 - 12 \n" ); document.write( " -C = -4 \n" ); document.write( " C = 4 yrs old now \n" ); document.write( ": \n" ); document.write( "That make Jill; 12 yrs old now \n" ); document.write( ": \n" ); document.write( "In 4 years: Jill will be 16, twice as old as Curt, who will be 8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |