Respuesta :
Answer:
Step-by-step explanation:
23=x^2+7
16=x^2
Take the square root of both to get x alone
x=4
Hope that might help you to find the right answer!? Let me know

Answer:
Step-by-step explanation:
23=x^2+7
16=x^2
Take the square root of both to get x alone
x=4