а) 8+3(х-5)+х=2(3+2х) б) 1/2х+1/4(х-2)=х (1/2 и 1/4 -дроби))

Question

а) 8+3(х-5)+х=2(3+2х) б) 1/2х+1/4(х-2)=х (1/2 и 1/4 -дроби))

Answer 1

8+3(х-5)+х=2(3+2х)
8+3х-15+х=6+4х
4х-4х=-8+6+15
0=13
1/2х*2+1/4х-1/4*2=х
3/4х-1/2=х
3/4х-х=1/2
-1/4х=1/2
х=-1/2*1/4
х-1/8

Answer 2

8+3(х-5)+х=2(3+2х)
8+3х-15+х=6+4х
4х-4х=-8+6+15
0=13

Ответ:нет решения
1/2х*2+1/4х-1/4*2=х
3/4х-1/2=х
3/4х-х=1/2
-1/4х=1/2
х=-1/2*1/4
х=-1/8

Ответ:-1/8