Question

3. 1) 9 – 4y = -5y; 3) 2x + 4 = 6;
5) -5m + 24 = m;
2) 4n = -2 + 6n;
4) 3x + 7 = x;
6) -16 - m = -2m.​

Answer 1

$9 - 4y = - 5y \\ - 4y + 5y - 9y \\ y = - 9 \\ \\ 2x + 4 = 6 \\ 2(x + 23) \\ \\ - 5m + 24 = m \\ - 5m - m = - 24 \\ - 6m = - 24 \\ m = 4 \\ \\$

Пошаговое объяснение:

$4n = - 2 + 6n \\ 4n - 6n = - 2 \\ - 2n = - 2 \\n = 1 \\ \\ 3x + 7 = x \\ 3x - x = - 7 \\ 2x = - 7 \\ x = - \frac{7}{2} \\ \\$

$- 16 - m = - 2m \\ - 16 - 3m$