Question

C = qt - k

(Make k the subject using transportation)

V = u + at

(Make u the subject using transportation)

Answer 1

c=qt-k

c-qt= -k

c-qt/-1=-k/-1

k=c-qt/-1....

v=u+at

v-at=u

u=v-at

I hope this helps

Answer 2

C - qt = -k

k = - C + qt

V = u + at

V - at = u

u = V - at