Zad 4
a) 12a + 20 + 15a - 6 = 27a + 14
b) 14p - 6 - 15p + 5 = -p - 1
c) -10 + 15m -2m - 16 = 13m - 26
d) 6x2 - 8x + 5x - 2x2 = 4x2 - 3x
e) 6u - 12u2 - 5u2 - 15u = 17u2 - 9u
f) -10t2 + 5t - 6t + 10t2 = -t
Zad 5
a) 6p - 8 + 2 - p = 5p - 6
b) 6 - 15m (4m + 3) = 6 - 15m - 4m - 3 = 3 - 19m
c) -20t + 10 - (6t - 1) = -20t + 10 - 6t + 1 = -26t + 11
d) 3x - 7 + 2 + 5x = 8x - 5
e) -3 + 5y + 2 - y = 4y - 1
