Collins Gross
05/25/2023 · Junior High School
\( \llbracket 2 x - 3 \rrbracket = - 5 \)
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Step-by-step Solution
To solve the equation \( \llbracket 2x - 3 \rrbracket = -5 \), we need to find the range of values for \( x \) such that the expression \( 2x - 3 \) is equal to -5. The notation \( \llbracket \cdot \rrbracket \) typically denotes the greatest integer function, which rounds down to the nearest integer. However, since the right-hand side of the equation is -5, which is an integer, we can assume that the greatest integer function is not affecting the equation.
So, we have:
\[ 2x - 3 = -5 \]
Now, let's solve for \( x \):
\[ 2x = -5 + 3 \]
\[ 2x = -2 \]
\[ x = \frac{-2}{2} \]
\[ x = -1 \]
Since the right-hand side is an integer and the greatest integer function is not affecting the equation, the solution is \( x = -1 \). This is the only value of \( x \) that satisfies the equation \( \llbracket 2x - 3 \rrbracket = -5 \).
Quick Answer
The solution is \( x = -1 \).
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