Odpowiedź :
-2x - 1 + 5x + 3 = 4x + 7
-2x + 5x - 4x = 7 + 1 - 3
-x = 5|* (-1)
x = -5
Odpowiedź:
2x - 1 + 5x + 3 = 4x + 7
7x +2 = 4x + 7
7x - 4x = 7 - 2
3x = 7 - 2
3x = 5
x = 5/3
-2x - 1 + 5x + 3 = 4x + 7
-2x + 5x - 4x = 7 + 1 - 3
-x = 5|* (-1)
x = -5
Odpowiedź:
2x - 1 + 5x + 3 = 4x + 7
7x +2 = 4x + 7
7x - 4x = 7 - 2
3x = 7 - 2
3x = 5
x = 5/3