Question

ПОЖАЛУЙСТА РЕШИТЕ ПОШАГОВО ЭТО 6КЛАСС МАТЕМАТИКА

Answer 1

1. 40-24х= 12-24х+7

40=12+7

40=19

2. 1.8-0.6у= 4.5-0.7у-6.3

1, 8 + 0, 6y = - 1, 8 + 0, 7y

0, 6y + 0, 7y = - 1, 8 - 1, 8

0, 1y = - 3, 6

y = - 36

3.7/15×x - 1/5 = x - 7/3

7x - 3 = 15x - 35

7x - 15x = - 35 + 3

- 8x = - 32

x = 4

4.3(2x - 1) + 5x - 2(1 - x) = 18x - 12

6x - 3 + 5x - 2 + 2x = 18x - 12

13x - 5 = 18x - 12

13x - 18x = - 12 + 5

- 5x = - 7

x = 7/5