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If the sum of x√48 and 4√3 is 16√3, what is the value of x

User Heez
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2 Answers

3 votes
x=8
When you plug 3 into x the sum of the first equation is 27.7128129211. The second equation equals 27.712819211 as well.
User Fadi Obaji
by
5.5k points
3 votes
Answer:
x = 3

Step-by-step explanation:
Before we begin, remember the following:
x√a + y√a = (x+y)√a
√xy = √x * √y

The given equation is:

x
√(48) +
4 √(3) =
16√(3)

Now, we know that:
48 = 16*3
Therefore:

√(48) can be written as
√(16*3)
We also know that:

√(16) = 4
Therefore:

√(16*3) = √(16) * √(3) = 4 √(3)

Now, substitute with the above in the given equation, this will give us:

x
√(48) +
4 √(3) =
16√(3)
x(
4 √(3) + 4 √(3) = 16 √(3) \\ 4x √(3) + 4 √(3) = 16 √(3)

Based on the rules mentioned earlier, we can conclude that:
4x + 4 = 16
4x = 16-4
4x = 12
x = 3

Hope this helps :)

User Awgy
by
5.4k points