jika diketahui fungsi h(x)=7x+15 untuk x € R, Nilai dari h^-1 (1) =.....? #bntu dgn cranya yh pleasee

h(x) = 7x + 15

h^-1 (7x + 15) = x
h^-1 (1) = x
7x + 15 = 1
7x = 1 - 15
x = -14/7
x = -2

h^-1 (1) = x = -2

#thanks_K'To9ha