Semoga ada yg berminat untuk jawabkan

jawab apa y ? soalnya aja gak ada gmn bisa njawab ?

a) (fog) = 2x + 5 = 2(x-3) +5 = 2x -1 ----> (fog)^-1 = 2x -1 , y = 2x -1 = y+1 =2x ----> (fog)^-1 = x+1 /2 , b) (gof) = x- 3 = 2x+5-3 = 2x+2 ----------> (gof)^-1 = 2x+2 , y = 2x+2 = y-2 = 2x -----;> (gof)^-1 = x-2 /2 , semoga dapat membantu...^^