Question

Решите уравнения: 1) -2,6z=5,46 2) n: (-6,8)=3,4 3)-4/9: y=3целых 5/9

Answer 1

$1) - 2.6z = 5.46 \\ z = - 2.1 \\ 2) \frac{n}{ - 6.8} = 3.4 \\ n = 3.4 \times ( - 6.8) \\ n = - 23.12 \\ 3) - \frac { 4}{9} \div y = 3 \frac{5}{9} \\ \frac{32}{9} y = - \frac{4}{9} \\ y = - \frac{4}{9} \times \frac{9}{32} \\ y = - \frac{1}{8}$

Answer 2

1. -2,6z=5,46
z=5,46/(-2,6)
z=-2,1.

2.
$\frac{n}{ - 6.8} = 3.4 \\ n = 3.4 \times ( - 6.8) \\ n = - 23.12$
3. -4y/9 = 32/9
-4y=32
y=-8.