Решите уравнения. Мне нужно решение с ответами
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1) 3x – 1 = 2(x – 2)

3x – 1 = 2x – 4

3x – 2x = –4 + 1

x = –3

2) 3(x + 5) = 7 – 5x

3x + 15 = 7 – 5x

3x + 5x = 7 – 15

8x = –8

x = –1

3) 19(y – 9) = 3(y – 8)

19y – 171 = 3y – 24

19y – 3y = –24 + 171

16y = 147

y = 147/16 = 9 3/16

4) 4(x – 9) = 3(x – 8)

4x – 36 = 3x – 24

4x – 3x = –24 + 36

x = 12

5) 3(2x – 9) = 5(x – 4)

6x – 27 = 5x – 20

6x – 5x = –20 + 27

x = 7