Question

solution of the question
100-x=80
(algebra)​

Answer 1

Answer:

x = 100-80

= 20

I hope it I'll help you.

Answer 2

Answer:

100 - x = 80 so

move 80 to the place of -x and move -x to the place of 80, now 80 is -80 so, 100 - 80 = x, 100 - 80 = 20