The expression for x in the equation given is : x = -1a/6
Using the expression given :
We can make 'x' the subject thus :
Subtract 5 from both sides :
4 - 5 = 6x/a + 5 - 5
-1 = 6x/a
multiply both sides by a
-1a = 6x
divide both sides by 6 to isolate x
x = -1a/6
Hence, the expression for x is : -1a/6