How do you solve $3 \sqrt{3 x - 1} = 21$ $3sqrt(3x-1)=21$ ?

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Answer 1 · 2018-03-07T12:01:45

$x = \frac{50}{3}$ $x=50/3$

Divide both sides by 3

$\sqrt{3 x - 1} = 7$ $sqrt(3x-1) = 7$

Square both sides and it becomes:

$3 x - 1 = 49$ $3x-1 = 49$

Add one to both sides

$3 x = 50$ $3x=50$

Divide both sides by 3

$x = \frac{50}{3}$ $x=50/3$

How do you solve 3sqrt(3x-1)=213√3x−1=213sqrt(3x-1)=21?