Questions: for the variable in the equation: (7x+4)/3 = 9/2 x = -2 1/14 x = -11/14 x = -4 9/14 x = 1 5/14

for the variable in the equation: (7x+4)/3 = 9/2

x = -2 1/14
x = -11/14
x = -4 9/14
x = 1 5/14
Transcript text: for the variable in the equation: $\frac{7 x+4}{3}=\frac{9}{2}$ \[ \begin{array}{l} x=-2 \frac{1}{14} \\ x=-\frac{11}{14} \\ x=-4 \frac{9}{14} \\ x=1 \frac{5}{14} \end{array} \]
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Solution

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Solution Steps

To solve the equation \(\frac{7x + 4}{3} = \frac{9}{2}\), we need to isolate the variable \(x\). We can do this by first eliminating the fractions through cross-multiplication, then solving the resulting linear equation.

Step 1: Eliminate the Fraction

We start with the equation: \[ \frac{7x + 4}{3} = \frac{9}{2} \] To eliminate the fraction, we can cross-multiply: \[ 2(7x + 4) = 3 \cdot 9 \]

Step 2: Simplify the Equation

Expanding both sides gives: \[ 14x + 8 = 27 \] Next, we isolate \(x\) by subtracting 8 from both sides: \[ 14x = 27 - 8 \] This simplifies to: \[ 14x = 19 \]

Step 3: Solve for \(x\)

Now, we divide both sides by 14: \[ x = \frac{19}{14} \] Converting this to a mixed number gives: \[ x = 1 \frac{5}{14} \]

Final Answer

\(\boxed{x = 1 \frac{5}{14}}\)

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