7*(2х - 3) + 2*(3 - х) = 4*(х + 5)
14х - 21 + 6 - 2х = 4х + 20
12х - 15 = 4х + 20
12х - 4х = 20 + 15
8х = 35
х = 35/8 = 4,375
Ответ: 4,375
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7*(2х - 3) + 2*(3 - х) = 4*(х + 5)
14х - 21 + 6 - 2х = 4х + 20
12х - 15 = 4х + 20
12х - 4х = 20 + 15
8х = 35
х = 35/8 = 4,375
Ответ: 4,375