Question
Solve for \( x \). \[ \frac{5 x-2}{-4}=-7 \] implify your answer as much as possible. \begin{tabular}{|l|}\hline\( \frac{\square}{\square} \) \\ \hline\end{tabular}
Ask by Ayala Herrera. in the United States
Jan 22,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
\( x=6 \)
Solution
Solve the equation \( \frac{5x-2}{-4}=-7 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{5x-2}{-4}=-7\)
- step1: Rewrite the fraction:
\(-\frac{5x-2}{4}=-7\)
- step2: Rewrite the expression:
\(\frac{-5x+2}{4}=-7\)
- step3: Cross multiply:
\(-5x+2=4\left(-7\right)\)
- step4: Simplify the equation:
\(-5x+2=-28\)
- step5: Move the constant to the right side:
\(-5x=-28-2\)
- step6: Subtract the numbers:
\(-5x=-30\)
- step7: Change the signs:
\(5x=30\)
- step8: Divide both sides:
\(\frac{5x}{5}=\frac{30}{5}\)
- step9: Divide the numbers:
\(x=6\)
The solution to the equation \( \frac{5x-2}{-4}=-7 \) is \( x=6 \).
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The Deep Dive
To solve for \( x \), we first start by eliminating the fraction. We can multiply both sides of the equation by \(-4\): \[ 5x - 2 = -7 \cdot -4 \] \[ 5x - 2 = 28 \] Next, we add \( 2 \) to both sides: \[ 5x = 28 + 2 \] \[ 5x = 30 \] Now, we divide both sides by \( 5 \): \[ x = \frac{30}{5} \] \[ x = 6 \] Thus, the solution is: \[ \begin{tabular}{|l|}\hline\( \frac{6}{1} \) \\ \hline\end{tabular} \]