Solve x^2 + y^2 = 81 for x. show solution steps.

  x = ±√(81 -y^2)

Step-by-step explanation:

Subtract y^2 and take the square root.

  x^2 +y^2 -y^2 = 81 -y^2 . . . . . subtract y^2

  x^2 = 81 -y^2 . . . . . simplify

  x = ±√(81 -y^2) . . . . take the square root

- 70

this is the answer for you hope it

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.