KN + 4f = 9v solve for n
there is no n just N so for N will be N = (9v -4f)/Khope helped
this is a literal equation.first subtract 4f on both sides. kn+4f -4f = 9v -4fNext divide k on both sides. (kn)/k = (9v - 4f)/kSimplify to get your answer:n=(9v - 4f)/k
