Respuesta :

Officialalehpeter

Answer:

x = 10

Step-by-step explanation:

x(x) + x(4) – 5(x) – 5(4) = x(x) + x(–3)

x² + 4x - 5x -20 = x² - 3x

Collect like terms

x² - x² + 4x -5x +3x -20 = 0

2x = -20

Divide through by 2

X = 10

Answer:

x=10

Step-by-step explanation:

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