Question

What is the solution to the equation? √x+3=12

Answer 1

Answer:

3

Step-by-step explanation:

$\sf \sqrt{x + 3 = 12}$

$\sf = \sqrt{x = 12 - 3}$

$\sf = \sqrt{x = 9}$

$\sf = \sqrt{9}$

$\sf = \sqrt{3 \times 3}$

= 3

Answer 2

Answer:

x = 81

Step-by-step explanation:

Combine like terms:  √x+3=12 becomes √x+3- 3= 12 - 3, or √x = 9.

Square both sides to obtain x:  x = 81