Реши уравнение 325+(90-n):17=30

Question

Реши уравнение

325+(90-n):17=30

Answer 1

325+(90-n)/17=30
(90-n)/17=30-325
(90-n)/17=-295
90-n=-295*17
90-n=-5015
-1n=-5015-90
-1n=-5105
n=-5105/(-1)
n=5105

Answer 2

325 + ( 90 - n ) : 17 = 30
( 90 - n ) : 17 = 30 - 325
( 90 - n ) : 17 = - 295
90 - n = - 295 * 17
90 - n = - 5015
- 1n = - 5015 - 90
- 1n = - 5105
n = - 5105 : ( - 1 )
n = 5105