Odpowiedź:
zad 1
a) 4(3x - 5) = 12x - 20
b) 5(8m + 2) = 40m + 10
c) 2(5t + 8) = 10t + 16
d) - 3(2a - 7) = - 6a + 21
e) 7(2 - a - 3b) = 14 - 7a - 21b
f) - 3(5p + 2r + 1/2) = - 15p - 6r - 3/2 = - 15p - 6r - 1 1/2
g) 2(2a + 5 - 3/4b) = 4a + 10 - 6/4b= 4a + 10 - (1 2/4)b = 4a + 10 - (1 1/2)b
h) - 2(3b - 4a + 0,5) = - 6b + 8a - 1
