Anonymous

(a - 1)(2a + 1)x = a - 1 cancel (a - 1)'s: (a - 1) = 0 a = 1 (2a + 1)x = 1 x = 1/(2a + 1), where a ≠ -1/2

Anonymous

Yes

Anonymous

If we are solving for x, we can divide both sides of the equation by (a-1), leaving us with (2a+1)x=1 Next, we divide both sides by (2a+1) to isolate the x, giving us x= 1/(2a+1)