Пошаговое объяснение:
6x = 18
x = 18 : 6
x = 3
-3x = 15
x = -15 : 3
x = -5
7x = -63
x = -63 : 7
x = -9
5x - 3 = 12
5x = 12 + 3
5x = 15
x = 15 : 5
-4x + 1 = 13
-4x = 13 - 1
-4x = 12
x = -12 : 4
x = -3
-x + 9 = 16
x = 9 - 16
x = -7
Пошаговое объяснение:
6x = 18
x = 18 : 6
x = 3
-3x = 15
x = -15 : 3
x = -5
7x = -63
x = -63 : 7
x = -9
5x - 3 = 12
5x = 12 + 3
5x = 15
x = 15 : 5
x = 3
-4x + 1 = 13
-4x = 13 - 1
-4x = 12
x = -12 : 4
x = -3
-x + 9 = 16
x = 9 - 16
x = -7