Respuesta :

Answer:

x=10

Step-by-step explanation:

Pull out like factors :

  -9x + 90  =   -9 • (x - 10)

Equations which are never true:

2.1      Solve :    -9   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

2.2      Solve  :    x-10 = 0

Add  10  to both sides of the equation :

                     x = 10