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59.  Please solve the following equation.       1/2 x ( X-5 ) - 3/5 x ( X-2) = 2.4 *1 point3845-37-43

Question

59. Please solve the following equation.

12x(X5)35x(X2)=2.4 \frac{1}{2} x ( X-5 ) - \frac{3}{5} x ( X-2) = 2.4

1 point
3845-37-43

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Solution

1. Break Down the Problem

We need to solve the equation: 12x(x5)35x(x2)=2.4 \frac{1}{2} x (x - 5) - \frac{3}{5} x (x - 2) = 2.4

2. Relevant Concepts

We will distribute the terms and combine like terms to simplify the equation before solving for x x .

3. Analysis and Detail

  1. Distribute 12x(x5)\frac{1}{2} x (x - 5): 12x252x \frac{1}{2} x^2 - \frac{5}{2} x

  2. Distribute 35x(x2)-\frac{3}{5} x (x - 2): 35x2+65x -\frac{3}{5} x^2 + \frac{6}{5} x

  3. Combine the terms: (12x235x2)+(52x+65x)=2.4 \left(\frac{1}{2} x^2 - \frac{3}{5} x^2\right) + \left(-\frac{5}{2} x + \frac{6}{5} x\right) = 2.4

  4. Finding a common denominator for the x2x^2 terms: 12=510,35=610 \frac{1}{2} = \frac{5}{10}, \quad -\frac{3}{5} = -\frac{6}{10} Therefore, combining them: 510x2610x2=110x2 \frac{5}{10} x^2 - \frac{6}{10} x^2 = -\frac{1}{10} x^2

  5. Finding a common denominator for the xx terms: 52=2510,65=1210 -\frac{5}{2} = -\frac{25}{10}, \quad \frac{6}{5} = \frac{12}{10} Thus, 2510x+1210x=1310x -\frac{25}{10} x + \frac{12}{10} x = -\frac{13}{10} x

  6. Substitute these into the equation: 110x21310x=2.4 -\frac{1}{10} x^2 - \frac{13}{10} x = 2.4

  7. Multiply everything by 10-10 to clear the fractions: x2+13x+24=0 x^2 + 13x + 24 = 0

4. Verify and Summarize

We can now factor the quadratic equation: (x+3)(x+8)=0 (x + 3)(x + 8) = 0 Setting each factor to zero gives: x+3=0x=3 x + 3 = 0 \quad \Rightarrow \quad x = -3 x+8=0x=8 x + 8 = 0 \quad \Rightarrow \quad x = -8

Final Answer

The solutions for the equation are: x=3orx=8 x = -3 \quad \text{or} \quad x = -8

This problem has been solved

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