_{One of the common solution of ax + by = c and y -axis is _____}

For common solution of ax + by + c = 0 and Y-axis, we have Equation of Y-axis, x = 0

We put , x = 0 in ax + by + c = 0 and get

a(0) + by + c = 0

$\Rightarrow$ by + c = 0

$\Rightarrow$ by = - c

$\Rightarrow$ y = $-\frac{c}{b}$.

Thus, the solutions we have are x = 0, y = $-\frac{c}{b}$.