(980:n)*18-84=276???

Question

(980:n)*18-84=276???

Answer 1

(980:n)*18=276+84
(980:n)*18=360
980:n=360:18
980:n=20
n=980:20
n=49

Answer 2

980:n=(276+84):18
980:n=20
n=980:20
n=49