How do you solve $8=10 (sqrt x) + 3$ ?

Question

1267 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-12-08T19:05:17

In an equation like this, you first put the $x$ 's to one side and the numbers to the other.

Subtract 3 from both sides:
$->5=10sqrtx$

Then you divide both sides by 10 to isolate the $sqrtx$
$->1/2=sqrtx->sqrtx=1/2$

As a final step, you can square both sides:
$->(sqrtx)^2=(1/2)^2->x=1/4$

How do you solve 8=10 (sqrt x) + 38=10 (sqrt x) + 3?