chinkoo11 chinkoo11 29-09-2017 Mathematics contestada Which of the following is a true equation? 1) 10 + 3 + 1 = 13 + 6 2) 4 - 3 = 7 3) 4 + 3 - 3 = 7 - 3 4) 4 + 3 = 7 + 3