document.write( "Question 870602: The sum of three consecutive intergers is 7 less than twice the first. What are the intergers? \n" ); document.write( "
Algebra.Com's Answer #524974 by JulietG(1812)![]() ![]() You can put this solution on YOUR website! A + B + C = 2A - 7 \n" ); document.write( "B = A + 1 \n" ); document.write( "C = A + 2 \n" ); document.write( "Substitute \n" ); document.write( "A + (A+1) + (A+2) = 2A-7 \n" ); document.write( "Add \n" ); document.write( "3A + 3 = 2A -7 \n" ); document.write( "subtract 2A from each side \n" ); document.write( "A + 3 = -7 \n" ); document.write( "Subtract 3 from each side \n" ); document.write( "A = -10 \n" ); document.write( "Numbers are -10, -9, -8 \n" ); document.write( ". \n" ); document.write( "Add them together to get -27 \n" ); document.write( "-27 is 7 less than twice -10. \n" ); document.write( " |