How do you solve sqrt( x+3)=5?

3 Answers
Jan 31, 2016

x=22

Explanation:

Squaring both sides, We get x+3 = 25 or x=25-3 or x=22 [Answer]

Jan 31, 2016

22 :)

Explanation:

We simply do a little algebraic techniques to solve for the value of x. First, we must remember the "Golden Rule of Algebra", what ever you do in the one side of the equation, you must do it in the other side of the equation. (Balancing).

sqrt(x+3) = 5

we need to isolate the value of x to get its value,

to eliminate the square root sign, we need to square both sides, giving:

x + 3 = 25

to eliminate the 3 in the Left Side of the Equation, we need to minus 3 in the both sides giving:

x = 22

hence, the answer and value of x is 22

Feb 1, 2016

sqrt(x+3)=5

Square both sides to remove the radical sign:

rarr(sqrt(x+3))^2=5^2

rarrx+3=25

rarrx=25-3=2