x + 1 plus x + 2 plus x + 3 plus x + 4 plus x +5 = 5005x + 15 = 500 'Simplify - 15 = -15 'Solve for x--------- -----5x = 485 'arrived here with subt.property of equality 5x = 485 'rewrite--- -----5 5 ' division property of equality x = 97 x + 1 = 98x + 2 = 99x + 3 = 100
