Subjects algebra

Clear Denominators A78Ff4

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Question: Solve #6-7 by clearing denominators $\frac{x+4}{6} - \frac{3x}{2} = 5$ top-right: handwritten notes “+”, “x”, “-7”, “= 13” with a bracket-like mark near them
1. **State the problem:** Solve the equation $$\frac{x+4}{6} - \frac{3x}{2} = 5$$ by clearing denominators. 2. **Identify the denominators:** The denominators are $6$ and $2$. 3. **Find the least common denominator (LCD):** The LCD of $6$ and $2$ is $6$. 4. **Multiply both sides of the equation by the LCD to clear denominators:** $$6 \times \left(\frac{x+4}{6} - \frac{3x}{2}\right) = 6 \times 5$$ 5. **Distribute the $6$ inside the parentheses:** $$6 \times \frac{x+4}{6} - 6 \times \frac{3x}{2} = 30$$ 6. **Simplify each term:** $$\cancel{6} \times \frac{x+4}{\cancel{6}} - 3 \times 3x = 30$$ which simplifies to $$x + 4 - 9x = 30$$ 7. **Combine like terms:** $$x - 9x + 4 = 30$$ $$-8x + 4 = 30$$ 8. **Isolate the variable term:** $$-8x = 30 - 4$$ $$-8x = 26$$ 9. **Solve for $x$ by dividing both sides by $-8$:** $$x = \frac{26}{-8}$$ $$x = -\frac{13}{4}$$ **Final answer:** $$x = -\frac{13}{4}$$