sat suite question viewer

Advanced Math / Nonlinear equations in one variable and systems of equations in two variables Difficulty: Easy

the square root of x plus 4, end root, equals 11

What value of x satisfies the equation above?

Back question 94 of 148 Next

Explanation

The correct answer is 117. Squaring both sides of the given equation gives x plus 4, equals 11 squared, or x plus 4, equals 121. Subtracting 4 from both sides of this equation gives x equals 117.