Respuesta :
Given the system of equations:
y = -5x + 30
x = 10
To solve the equation, since the second equation in the system gives the value of x, we substitute the value of x to the first equation, to get:
y = -5(10) + 30 = -50 + 30 = -20
Therefore, the solution to the system is x = 10 and y = -20 which is written as (10, -20)