Question

Solve the given equation:x = -8y + 9

Answer 1

We have to solve the equation.

`x=-8y+9`

We have 2 unknowns and one equation, so we can only express one in function of the other.

We already have x in function of y, so we will now express y in function of x:

`\begin{gathered} x=-8y+9 \\ x-9=-8y+9-9 \\ (x-9)/(-8)=(-8y)/(-8) \\ \\ -(x)/(8)+(9)/(8)=y \\ \\ y=-(x)/(8)+(9)/(8) \end{gathered}`

Answer:

y = -x/8 + 9/8