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ValentinkaMS [17]
3 years ago
13

How do you solve this and what is the answer?

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0
We want to get rid of the square root sign somehow, so let's isolate that term.

2\sqrt{\frac{3x}{5}} + 3 = 11
2\sqrt{\frac{3x}{5}} = 11 - 3 = 8
\sqrt{\frac{3x}{5}} = 4

Now, in order to 'undo' a root sign, we need to do the opposite to it, by squaring the term, but in order for it to remain the same, we need to square 4 as well.

\frac{3x}{5} = 16

Now, we can isolate the variable:
3x = 5 \cdot 16 = 80
x = \frac{80}{3}, and since we can't simplify this further, our final answer becomes:

x = \frac{80}{3} or x = 26\frac{2}{3}
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