"If $1$ is added to numerator and denominator each, the fraction becomes $\dfrac{1}{2}$" gives the equation —

Question

Accepted Answer

$2x - y + 1 = 0$

Answer

$x - 2y + 1 = 0$

Answer

$2x + y - 1 = 0$

Answer

$x + 2y - 1 = 0$

"If 111 is added to numerator and denominator each, the fraction becomes 12\dfrac{1}{2}21​" gives the equation —