document.write( "Question 988944: Please help me solve this problem and turn it into equation: Kenny is seven years older than his sister. The sum of their ages is 31. Find the age of each. \n" ); document.write( "
Algebra.Com's Answer #609421 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "K=Kenny's age; S=sister's age \n" ); document.write( ". \n" ); document.write( "K=S+7yrs Use this to substitute for K. \n" ); document.write( ". \n" ); document.write( "K+S=31 Substitute for K from above. \n" ); document.write( "S+7+S=31 \n" ); document.write( "2S=24 \n" ); document.write( "S=12 ANSWER 1: Sister is 12 years old. \n" ); document.write( ". \n" ); document.write( "K=S+7yrs=12yrs+7yrs=19yrs ANSWER 2: Kenny is 19 years old. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |