Question

Solve 2square root of x plus seven. - 10 = -8

Answer 1

\[2\sqrt{x+7}-10=-8\]
Is that the right equation?
If so, first, Isolate the radical (add ten to both sides, divide by two)

Answer 2

And Then What ?

Answer 3

can you tell me step by step ?

Answer 4

1. Add ten to both sides
\[2\sqrt{x+7}=2\]
2. Divide both sides by two.
\[\sqrt{x+7}=1\]
3. Square both sides
\[x+7 = 1\]
4. Subtract 7 from both sides
\[x=1-7=-6\]
Then plug -6 in for x in the original equation, and you get the right answer.

Answer 5

Thank You So Much