Find the value of x that makes the equation true.

x + 4 = 12

x = 3
x = 8
x = 16
x = 24

The correct answer is 8 because 8+4 equals 12

The correct answer is -4

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.