1)3х - 11 = -2х+ 5
3x + 2x = 5 + 11
5x = 16
x = 3.2
2)21х - 11 = 30 - х
21x + x = 30 + 11
22x = 41
x = 41/22
х=1,86363636364
1)3х - 11 = -2х+ 5
3x + 2x = 5 + 11
5x = 16
x = 3.2
2)21х - 11 = 30 - х
21x + x = 30 + 11
22x = 41
x = 41/22
х=1,86363636364