Answer:
Step-by-step explanation:
Squaring both sides of the equation would give which then simplifies to
We can then subtract 7 from both sides to get
Then we can subtract x from both sides, which cancel out and we get
Then we need to divide both sides by -2 to get
Then we need to square both sides to get rid of the square root to get 9 = x + 6
Then finally subtracting 6 from both sides we get 3 = x
