Odpowiedź:
a) S = [tex]\frac{a + 2t}{3}[/tex]
3S = a + 2t
3S - a = 2t
[tex]\frac{3S - a}{2}[/tex] = t
b) F = [tex]\frac{4y - z}{3}[/tex]
3F = 4y - z
3F + z = 4y
z = 4y - 3F
c) P = t - 3rt + 2
P + 3rt = t + 2
3rt = t + 2 - P
r = [tex]\frac{t + 2 - P}{3t}[/tex]
d) a = [tex]\frac{4k - l}{m} + 2[/tex]
am = 4k - l + 2
am + l = 4k + 2
l = 4k + 2 - am
Mam nadzieje że pomogłam :DD