Question

x-(3-(x+6)) раскрыть скобки

Answer 1

x-(3-(x+6))=x-(3-x-6)=x-(-x-3)=x+x+3=2x+3

Answer 2

х - (3 - (х + 6)) =
= х - (3 - х - 6) =
= х - 3 + х + 6 =
2х + 3