Question

Решите уравнение
-6u = -5,4.
5s - 4 + 6s = 18.
10x 16 = 0.
-4x+5=5x-26.
14- (7 - 5x) = 2.

Answer 1

-6u=-5.4      

u=5.4/6

u=0.9

5s-4+6s=18

11s=22

s=2

10x(тут должен быть +)+16=0

10x=-16

x=-1.6

-4x+5=5x-26

-4x-5x=-26-5

9x=31

x=31/9

x=3 целых 4/9

14-(7-5x)=2

5x=-5

x=-1

Answer 2

1)

$- 6u = - 5.4 \\ u = 0.9$

2)

$5s - 4 + 6s = 18 \\ 11s = 22 \\ s = 2$

3)

$10x - 16 = 0 \\ 10x = 16 \\ x = 1.6$

4)

$- 4x + 5 = 5x - 26 \\ - 4x - 5x = - 26 - 5 \\ - 9x = - 31 \\ x = 3 \frac{4}{9}$

5)

$14 - (7 - 5x) = 2 \\ 14 - 7 + 5x - 2 = 0 \\ 5x + 5 = 0 \\ 5x = - 5 \\ x = - 1$