We're given with,
⇒h(x) = 5 - 9x
⇒h(x) = -67
Now, We'll make two equations,
⇒h(x) = 5 - 9x ........ (Ⅰ)
⇒h(x) = -67 ......... (ⅠⅠ)
As, both the equations which we formed are equal, So, we'll equate both of them,
⇒5 - 9x = -67
⇒-9x = -67 - 5 (Combining like terms)
⇒-9x = -72 (Since, (-) is common in L.H.S & R.H.S we'll cancel it out & we will get the values positive)
⇒x = 72/9 (Transposing 9 to R.H.S)
⇒x = 8 (Required Answer)