Question

1)2(x-7)=
2) 1-(a+c-x)=
3)2x-9+4x=​

Answer 1

Пошаговое объяснение:

$2( x- 7) = 2x - 14 \\ 1 - (a + c - x) = 1 - a - c + x \\ 2x - 9 + 4x = 6x - 9$