Question

ab=6+cd solve for c

Answer 1

c=ab-6/d

Answer 2

it should be... c=(ab-6)/d... it should be quantity (ab-6)... all over d....

Answer 3

ab=6+cd
to solve for c, we start adding -6 both side to move 6 on the left-hand side...
ab+(-6) = 6+cd+(-6)
ab-6 = cd
divide both side by d, to cancel d on the right-hand side of the equation, so that c will be solved... we put quantity (ab-6) divided by d
(ab-6)/d = c or

c = (ab-6)/d