How do you solve $sqrt(a-5)<=4$ ?

Nov 23, 2016

$a le 21$

Square both sides to begin isolating $a$ .

$a-5 le 4^2$

Now add $5$ to both sides.

$a le 16+5$

Combine like terms.

$a le 21$

There you go!

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How do you solve sqrt(a-5)<=4sqrt(a-5)<=4?