Question

рЕШИТЕ УРАВНЕНИЯ:
-12:(2х-1)-(х-1)=х
21:(х-3)=7

Answer 1

2-3(2х-1)= 1+7(х-5)

2-6х+3=1+7х-35

5-6х=7х-34

5+34=7х+6х

39=13х

13х=39

х=39:13

х=3

2-3(2*3-1)=1+7(3-5)