Question

Решите уравнения.
а)3х+6=5(х-1)+10; б)4(1-х)=3(2х+3); в)12х-(7-3)=4х; г)8х+3=1-(2х+4).

Answer 1

3х+6=5х-5+10
3х-5х=5-6
-х=-1
х=1
4-4х=6х+9
-4х-6х=9-4
-10х=5
х=-0,5
12х-4=4х
12х-4х=4
8х=4
х=4/8=0,5
8х+3=1-2х-4
8х+2х=-6
10х=-6
х=-0,6