If the left side of the equation is divided by 2 and the right side is multiplied by 0.5, the left and right sides of the equation are still equal In three minutes
Because △ 2 = Times 0.5, and 0.5 ≠ 0
So it was established
Because △ 2 = Times 0.5, and 0.5 ≠ 0
So it was established