Odpowiedź :
3x+ 2y + 5x –y – x = 7x + y
-2m – n + 5m + 4n = 3m + 3n
k – s² + 3k – 6s² = 4k - 7s²
a + 5b + (3b – 2a) = a + 5b + 3b - 2a = -a + 8b
4x – 3y – ( 2x - 4y) = 4x - 3y - 2x + 4y = 2x + y
A 7x + y
B 3m + 3n
C 4k - 7s^2
D a + 5b + 3b - 2a = -a + 8b
E 4x - 3y -2x + 4y = 2x + y
B 3m + 3n
C 4k - 7s^2
D a + 5b + 3b - 2a = -a + 8b
E 4x - 3y -2x + 4y = 2x + y