Question

63÷(2×x-1)=7 помогите​

Answer 1

Ответ:

х=5

$\frac{63}{2x - 1} = 7$

$63 = 14x - 7$

$- 14x = - 7 - 63$

$14x = 70$

$x = \frac{70}{14} = 5$

Answer 2

$63: (2*x-1)=7\\63:(2x-1)=7, x\neq \frac{1}{2} \\\frac{63}{2x-1} =7\\63=7(2x-1)\\9=2x-1\\-2x=-1-9\\-2x=-10\\x=5$