Question

x=b-cd, for c

Answer 1

add cd to both sides so you get:
x+cd=b

Answer 2

then subtract x from both sides so you get:
cd=b-x

Answer 3

then divide both sides by d so you get:
c=(b-x)/d

Answer 4

the answer is c=(b-x)/d

Answer 5

Thankyou !!