Question

The line ax+(a+1)y=a+2 passes through the point (4,-8). Find a.

Answer 1

You would plug in -8 to the y and 4 to the x.

Answer 2

-2

Answer 3

So if you plugged in the numbers, your equation would become \[a(4) + (a+1)(-8) = a + 2\]
Solve that for a, and you get -2.