What is the solution of the equation?

square root of x plus ten–9 = –7

Question

What is the solution of the equation?

square root of x plus ten–9 = –7

anonymous · Answer

Could you re-write the equation with digits? For square root of x do root(x).

whpalmer4 · Answer

$$\sqrt{x+10} - 9 = -7$$Add 9 to both sides
$$\sqrt{x+10} = 2$$Square both sides and solve for x.

anonymous · Answer

The answer choices are
–6
4
14
–8

anonymous · Answer

Is WhPalmer's equation what you're working with?

anonymous · Answer

That is, what is under the square root symbol?

whpalmer4 · Answer

The answer to the problem I wrote is in the list of choices...

whpalmer4 · Answer

And I think it's the only problem that makes sense.  There has to be something on the left side large enough to make -7 positive if the item from the left moves to the right; otherwise, we're talking square roots of a negative number, and I doubt that is the case.

whpalmer4 · Answer

@carlycarl3 do you know what would be on the left hand side if you squared it?

whpalmer4 · Answer

Here's a hint:
$$(\sqrt{z})^2 = z$$