А)- 2x + 12 = 0 б)2 + 4x = 4x - 3 в)(24 + 15x) - 10x = 8 г)3 (x + 5) - 2 = 16 - (x - 5)

Question

А)- 2x + 12 = 0
б)2 + 4x = 4x - 3
в)(24 + 15x) - 10x = 8
г)3 (x + 5) - 2 = 16 - (x - 5)

Answer 1

- 2x + 12 = 0
-2х=-12
х=6

2 + 4x = 4x - 3
4х-4х=-3-2
0≠-5
нет решений,нет корней 
(24 + 15x) - 10x = 8
24+15х-10х=8
5х=8-24
5х=-16
х=-3,2

3 (x + 5) - 2 = 16 - (x - 5)3х+15-2=16-х+5
3х+х=16+5-15+2
4х=8
х=2