document.write( "Question 963359: Today hector is 22 years older than his sister. In 5 years he will be 3 times as old as she will be. How old is hector and his sister today? \n" ); document.write( "
Algebra.Com's Answer #588573 by macston(5194)![]() ![]() You can put this solution on YOUR website! H=hector's age; S=sister's age \n" ); document.write( "H=S+22yrs \n" ); document.write( "H+5=3(S+5) Substitute for H. \n" ); document.write( "S+22+5=3S+15 \n" ); document.write( "S+27=3S+15 Subtract 15 from each side. \n" ); document.write( "S+12=3S Subtract S from each side. \n" ); document.write( "12=2S Divide each side by 2. \n" ); document.write( "6=S ANSWER 1: Sister is 6 years old \n" ); document.write( "H=S+22yrs=6yrs+22yrs=28 yrs ANSWER 2: Hector is 28 years old. \n" ); document.write( "CHECK: \n" ); document.write( "H+5=3(S+5) \n" ); document.write( "28yrs+5yrs=3(6yrs+5yrs) \n" ); document.write( "33yrs=3(11yrs) \n" ); document.write( "33yrs=33yrs \n" ); document.write( " |