document.write( "Question 943166: How old is Bernie if next year he will be twice as old as he was seven years ago \n" ); document.write( "
Algebra.Com's Answer #574985 by macston(5194)![]() ![]() You can put this solution on YOUR website! B= Bernie's age;B+1=2(B-7) (B+1 is Bernie next year, B-7= Bernie 7 yrs ago) \n" ); document.write( "B+1=2B-14 add 14 to each side \n" ); document.write( "B+1+14=2B-14+14 \n" ); document.write( "B+15=2B subtract B from each side \n" ); document.write( "B+15-B=2B=B \n" ); document.write( "15=B ANSWER Bernie is 15 \n" ); document.write( "CHECK \n" ); document.write( "B+1=2(B-7) \n" ); document.write( "15+1=2(15=7) \n" ); document.write( "16=2(8) \n" ); document.write( "16=16 \n" ); document.write( " \n" ); document.write( " |