Решите номер 3........

Question

Решите номер 3........

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Answer 1

1–2х 2(1–2х) х+3
------- – ----------- = ------
3 5 4

5(1–2х)–6(1–2х) х+3
----------------------- = ------
15 4

(1–2х)(–1) х+3
------------- = -----
15 4

2х–1 х+3
------- = ------
15 4

4(2х–1) = 15(х+3)
8х–4 = 15х+45
–7х = 49
х = –7