a) P= d/m RT; M
P= d/m RT|x m
P x m = dRT|:P
m = dRT/P
b) f= 9/3c + 32; c
f= 9/3c + 32 | x 3c
f x 3c = 41 |:3f
c = 41/3f
c) s= vt + at²/2; a
s= vt + at²/2 \ x 2
2s = vt + at² | - vt
2 s - vt = at² |: t²
2 s - vt /t² = a
d) F=G Mm/r²; m
F=G Mm/r² | x r²
F x r² = GMm |:GM
F x r²/ GM = m
