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28.10.2020 06:45 •  Математика

2х + 17 = 22 + 3 х 25 – 4х = 12 - 5х
13х + 27 = 16 х + 45
21 х + 45 = 17 + 14 х
3х -1 = 2( х -2)
3( х + 5) = 7 – 5х
19(у – 9) = 3( у + 7)
4( х – 9) = 3 ( х -8)
(х-5)/4=7-(2х-11)/3
(2-7х)/6+(4х+7)/3=-х/2