Question

Solve the equation √x+9 - 9 = -4 show each step of your solution process

Answer 1

16

Explanation:

Start by adding 9 to both sides, obtaining: √(x + 9) = 5.

Square both sides, obtaining: x + 9 = 25.

Subtract 9 from both sides: x = 16

Note that √(16+9) - 9 = -4, as required.