Question

решите уравнение: (-45-х):(-2)=60​

Answer 1

$\frac{ - 45 - x}{ - 2} = 60 \\ - \frac { - 45 - x}{2} = 60 \\ \frac{45 + x}{2} = 60 \\ 45 + x = 120 \\ x = 120 - 45 \\ x = 75$

Х=75