July 2022 2 20 Report
40 баллов тому, кто все решит.

Решите уравнения :
1) 4 (13-3х)-17=-5х
2) (18-3х)-(4+2х)=10
3) 14 - Х = 0,5 (4-2х)+12
4) 4х-3 (20-х)=10х-3 (11+х)

Найдите корень уравнения:

1) 10х+7=8х-9
2) 20-3х=2х-45
3) 2,7+1,9=-2х-15
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