equation has infinitely many solutions has the same number on both sides of the equal sign
-3x -21 + x + 5 = -20x -16
-2x -16 = -20x -16
so either you have -18x on the left or +18x in the right
Wow. this is too difficult for me
Answer: 3125
5x5x5=125
125x25=3125
