Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 4/5

\sqrt{3x+1} = \sqrt{x+9}

A
$x = 5$
B
$x = 8$
C
$x = 2$
D
$x = 4$
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Explanation

3x + 1 = x + 9 \Rightarrow 2x = 8 \Rightarrow x = 4

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