Question

how do i solve kx+c=9 for x

Answer 1

$kx+c=9\ \ \ |-c\\\\kx=9-c\ \ \ \ |:k\neq0\\\\\boxed{x=\dfrac{9-c}{k}}$

Answer 2

Hello!

To solve for x you need to isolate x on one side as seen below.

kx+c=9
kx+c-c=9-c
kx=9-c
kx/k=(9-c)÷k
x=$\frac{9-c}{k}$

I hope this helps!