Question

Виконайте додавання: (7x - 20)/(6 - x) + (4 + 3x)/(x - 6)

Answer 1

$\frac{7x - 20}{6 - x} + \frac{4 + 3x}{x - 6} = \frac{7x - 20}{ 6 - x} - \frac{4 + 3x}{6 - x} = \frac{7x - 20 - 4 - 3x}{6 - x} = \frac{4x - 24}{6 - x} = \frac{4(x - 6)}{ - (x - 6)} = - 4$