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Solve for 
r.

{:[(4r-6)/(r-7)=(1)/(2)],[r=]:}

Solve for r r .\newline4r6r7=12r= \begin{array}{l} \frac{4 r-6}{r-7}=\frac{1}{2} \\ r=\square \end{array}

Full solution

Q. Solve for r r .\newline4r6r7=12r= \begin{array}{l} \frac{4 r-6}{r-7}=\frac{1}{2} \\ r=\square \end{array}
  1. Clear Fraction by Multiplying: We have the equation (4r6)/(r7)=1/2(4r - 6) / (r - 7) = 1/2. To solve for rr, we need to clear the fraction by multiplying both sides of the equation by the denominator (r7)(r - 7).\newlineCalculation: (4r6)/(r7)(r7)=1/2(r7)(4r - 6) / (r - 7) \cdot (r - 7) = 1/2 \cdot (r - 7)\newlineThis simplifies to: 4r6=(1/2)(r7)4r - 6 = (1/2) \cdot (r - 7)
  2. Distribute 12\frac{1}{2} on Right Side: Distribute the 12\frac{1}{2} on the right side of the equation.\newlineCalculation: 4r6=(12)×r(12)×74r - 6 = \left(\frac{1}{2}\right) \times r - \left(\frac{1}{2}\right) \times 7\newlineThis simplifies to: 4r6=(12)×r3.54r - 6 = \left(\frac{1}{2}\right) \times r - 3.5
  3. Move Terms to Isolate rr: To isolate rr, we need to get all the rr terms on one side and the constants on the other. Let's move the (1/2)×r(1/2) \times r term to the left side by subtracting it from both sides.\newlineCalculation: 4r(1/2)×r6=3.54r - (1/2) \times r - 6 = -3.5\newlineThis simplifies to: (8/2)×r(1/2)×r6=3.5(8/2) \times r - (1/2) \times r - 6 = -3.5
  4. Combine Like Terms: Combine like terms on the left side of the equation.\newlineCalculation: (8212)r6=3.5(\frac{8}{2} - \frac{1}{2}) \cdot r - 6 = -3.5\newlineThis simplifies to: (72)r6=3.5(\frac{7}{2}) \cdot r - 6 = -3.5
  5. Add 66 to Both Sides: Add 66 to both sides to isolate the term with rr.\newlineCalculation: (72)r6+6=3.5+6(\frac{7}{2}) * r - 6 + 6 = -3.5 + 6\newlineThis simplifies to: (72)r=2.5(\frac{7}{2}) * r = 2.5
  6. Multiply by Reciprocal: Multiply both sides by the reciprocal of (72)(\frac{7}{2}) to solve for rr.\newlineCalculation: r=2.5×(27)r = 2.5 \times (\frac{2}{7})\newlineThis simplifies to: r=57r = \frac{5}{7}