Question
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The following rationa equation has denom nators that contain variables. Keeping the restrictions in mind solve the equation \[ \frac{3}{x}+2=\frac{5}{4 x}+\frac{17}{3} \] a. What isiare the value or values of the variable that make(s) the denomin

Ask by Hill Bryant. in the United States
Jan 26,2025

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Answer

The solution to the equation is \( x = \frac{21}{44} \), with the condition that \( x \neq 0 \).

Solution

To solve the equation \[ \frac{3}{x} + 2 = \frac{5}{4x} + \frac{17}{3} \] we first need to identify the restrictions on the variable \( x \) that make the denominators valid. The denominators in the equation are \( x \) and \( 4x \). ### Step 1: Identify Restrictions The denominators cannot be zero, so we set the following conditions: 1. \( x \neq 0 \) 2. \( 4x \neq 0 \) (which also implies \( x \neq 0 \)) Thus, the only restriction is \( x \neq 0 \). ### Step 2: Solve the Equation Next, we will solve the equation step by step. 1. **Eliminate the fractions**: To eliminate the fractions, we can multiply both sides of the equation by the least common multiple (LCM) of the denominators, which is \( 12x \). \[ 12x \left( \frac{3}{x} + 2 \right) = 12x \left( \frac{5}{4x} + \frac{17}{3} \right) \] 2. **Distribute**: \[ 12x \cdot \frac{3}{x} + 12x \cdot 2 = 12x \cdot \frac{5}{4x} + 12x \cdot \frac{17}{3} \] This simplifies to: \[ 36 + 24x = 15 + 68x \] 3. **Rearrange the equation**: Move all terms involving \( x \) to one side and constant terms to the other side: \[ 36 - 15 = 68x - 24x \] This simplifies to: \[ 21 = 44x \] 4. **Solve for \( x \)**: \[ x = \frac{21}{44} \] ### Final Answer The value of the variable \( x \) that satisfies the equation is \[ x = \frac{21}{44} \] with the restriction that \( x \neq 0 \).

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Mind Expander

First, we need to identify the restrictions based on the denominators. The variables in the denominators are \(x\) and \(4x\), so \(x\) cannot be 0 because that would make the denominators undefined. Therefore, \(x \neq 0\) is a crucial restriction in solving the equation. Now, to solve the equation, we can start by eliminating the fractions. Multiply through by \(12x\) (the least common multiple of the denominators) to clear out the denominators: \[ 12x \left( \frac{3}{x} + 2 \right) = 12x \left( \frac{5}{4x} + \frac{17}{3} \right) \] This simplifies to: \[ 36 + 24x = 15 + 68x \] Next, rearrange the equation to isolate \(x\): \[ 36 - 15 = 68x - 24x \] \[ 21 = 44x \] Now divide both sides by 44: \[ x = \frac{21}{44} \] So the solution is \(x = \frac{21}{44}\). Remember, this value doesn't violate our original restriction of \(x \neq 0\)!

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