Question

-4,1x = *12,3
3x + 25 = 49-x
0,4x = -10
3(x+2) = -36

Answer 1

Пошаговое объяснение:

$- 4.1 x = 12.3 \\ x = - 3$

$3x + 25 = 49 - x \\ 3x + x = 49 - 25 \\ 4x = 24 \\ x = 6$

$0.4x = - 10 \\ x = - 25$

$3(x + 2) = - 36 \\ 3x + 6 = - 36 \\ 3x = - 36 - 6 \\ 3x = - 42 \\ x = - 14$