Odpowiedź :
A) 13x - 5 = 9
13x = 14 / : 13
x = 14/13
B) -18x + 17 = 23
-18x = 6 / : -18
x = -18/6 = -1/3
C) 5x - 30 = 2x + 15
3x = 45 / :3
x = 15
D) -22x + 6 = -38
-22x = -44 / : -22
x = 2
Liczę na naj
A) 13x - 5 = 9
13x = 14 / : 13
x = 14/13
B) -18x + 17 = 23
-18x = 6 / : -18
x = -18/6 = -1/3
C) 5x - 30 = 2x + 15
3x = 45 / :3
x = 15
D) -22x + 6 = -38
-22x = -44 / : -22
x = 2
Liczę na naj