x=9 is as simple as it gets. The question is the solution.
(x-9)(X+8)
x^2 +9 =x^2 -9 9=-9 No solution
x - 9 = 0 x - 9 = 0 x - 9 = 0 x - 9 = 0
The equation does not have a solution.
false, there is a solution -34x - 9 = 24 +9 +9 -34x = 33 x= - 33/34 or x = -.970588
x = -6
5.6
(x, y) = (3, 7) is a solution.
x=9
-3x = 9x = 9/(-3)x = -3
No.
solution with [OH-] = 2.5 x 10-9 , A solution with [H+] = 1.2 x 10-4, A solution with pH = 4.5