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21.05.2021 07:35 •  Математика

AIPLUS ий pequence
2- деңгей
1. Теңдеуді шешіңіз:
A
3(х + 2) – х = 10
B
1.
8 = 3(x — 4) — x
С
1
(х – 4) + 3x = 5
2.
1
2.
4х + 3(х – 7) = 5
3(х – 1) + х = 2х
х = 3
3.
5 – х = 4(х – 3)
5(х + 4) + х = 6
2(x + )-x=
- (х +9)
-2(x+1) = -21
5х
= 18
4.
7 — (2x + 3) = 9
3(х