Question

3(5х-4)-8х=4х+9 ; 19х-8(х-3)=66-3х. Решите уравнения, пожалуйста

Answer 1

3(5х-4)-8х=4х+9
15х-12-8х=4х+9
15х-8х-4х=9+12
3х=21
х=21:3
х=7

19х-8(х-3)=66-3х
19х-8х+24=66-3х
19х-8х+3х=66-24
14х=42
х=42:14
х=3