Answer:
x = -

Explanation:
We have to solve the equation for the value of x.
n(17 + x) = 34x - r
17n + nx = 34x - r [By Distributive property ]
17n + nx - 17n = 34x - r - 17n [subtracting 17n from both the sides of the equation]
nx = 34x - r - 17n
nx - 34x = 34x - r - 17n - 34x [Subtracting 34x from both the sides of the equation]
x(n - 34) = -(r + 17n) [Division by (n - 34) on both the sides of the equation]
x = -
