Автор - Aлекс666

7*x+4=22+17

50+4*x=82

3*(x+6)-23=16

Ответ

Проверено экспертом

Автор - zhenyaM2002
7 * х  +4 = 22 + 17
7х    + 4  = 39
7х = 39-4
7х = 35
х = 35 : 7
х=5
=================
7 * 5  +  4  =  22 + 17
35   +  4  =  39
39=39

50   +  4 * х = 82
4х =  82 - 50
4х =  32
х = 32 :4
х= 8
=============
50 + 4 * 8  = 82
50  + 32 = 82
82 = 82


3*(х + 6)  - 23  = 16
3 * (х + 6) = 16+23
3 * ( х + 6) = 39
х + 6 = 39 : 3
х + 6 = 13
х=13 - 6
х = 7
===============
3*(7+6)  - 23 = 16
3 * 13   - 23  = 16
39  - 23  = 16
16 = 16 

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