Question

6х-10=15-х
3(х-2)=4(3х+5)
3(2,5+2х)=0,2(0.25-5х)

Answer 1

6х+х=15+10;
7х=25;
х=3 4/7;
б)3х-6=12х+20;
3х-12х=20+6;
-9х=26;
х=-2 8/9;
в)7,5+6х=0,5-х;
6х+х=0,5-7,5;
7х=-7;
х=-1;