Question

$x - 11 = frac{x+7}{7}$

Answer 1

$x - 11 = frac{x+7}{7} \7(x-11) = x + 7\7x - 77 = x + 7\6x = 84\x = 14$

Answer 2

x-11= x+7/7
7(x-11)=x+7
7x-77=x+7
7x-x=77+7
6x=84
x=84:6
x=14
Ответ: x=14