tolong dibantu ya jawaban no 5 matematika wajib kelas 10

-x -5 / 7x - 4 jawbannya a

x= 4y -5 / 7y + 1
x(7y + 1) = 4y - 5
7xy + x = 4y -5
7xy -4y = -x -5
y(7x-4) = -x-5
y = -x-5/7x-4