Question

15-(х+4)=3
7-(2х-1)=4

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

$15 - ( x + 4) = 3 \\ x = 4 + 3 \\ x = 7 \\ \\ 7 - (2x - 1) =4 \\ 2x = 7 - 1 - 4 \\ x = 2$