Which of the following equations has a solution different from the rest? (1 point) Responses −17x−34=14 negative Start Fraction 1 over 7 End Fraction x minus Start Fraction 3 over 4 End Fraction equals Start Fraction 1 over 4 End Fraction 12x−3=12 Start Fraction 1 over 2 End Fraction x minus 3 equals Start Fraction 1 over 2 End Fraction 34x+5=−14 Start Fraction 3 over 4 End Fraction x plus 5 equals negative Start Fraction 1 over 4 End Fraction −0.35x−0.52=1.93

1 answer

To find which equation has a solution different from the rest, let's solve each equation one by one.

  1. Equation 1: \(-17x - 34 = 14\)

    Adding \(34\) to both sides: \(-17x = 14 + 34\) \(-17x = 48\)

    Dividing by \(-17\): \(x = -\frac{48}{17}\)

  2. Equation 2: \(\frac{1}{7}x - \frac{3}{4} = \frac{1}{4}\)

    Adding \(\frac{3}{4}\) to both sides: \(\frac{1}{7}x = \frac{1}{4} + \frac{3}{4}\) \(\frac{1}{7}x = 1\)

    Multiplying both sides by \(7\): \(x = 7\)

  3. Equation 3: \(12x - 3 = 12\)

    Adding \(3\) to both sides: \(12x = 12 + 3\) \(12x = 15\)

    Dividing by \(12\): \(x = \frac{15}{12} = \frac{5}{4}\)

  4. Equation 4: \(\frac{1}{2}x - 3 = \frac{1}{2}\)

    Adding \(3\) to both sides: \(\frac{1}{2}x = \frac{1}{2} + 3\) \(\frac{1}{2}x = \frac{1}{2} + \frac{6}{2} = \frac{7}{2}\)

    Multiplying by \(2\): \(x = 7\)

  5. Equation 5: \(34x + 5 = -14\)

    Subtracting \(5\) from both sides: \(34x = -14 - 5\) \(34x = -19\)

    Dividing by \(34\): \(x = -\frac{19}{34}\)

  6. Equation 6: \(-0.35x - 0.52 = 1.93\)

    Adding \(0.52\) to both sides: \(-0.35x = 1.93 + 0.52\) \(-0.35x = 2.45\)

    Dividing by \(-0.35\): \(x = \frac{-2.45}{0.35} = -7\)

Now let's summarize the solutions:

  • Equation 1: \(x = -\frac{48}{17}\)
  • Equation 2: \(x = 7\)
  • Equation 3: \(x = \frac{5}{4}\)
  • Equation 4: \(x = 7\)
  • Equation 5: \(x = -\frac{19}{34}\)
  • Equation 6: \(x = -7\)

The solutions for Equations 2 and 4 are both \(x = 7\). Hence, they are the same.

Other solutions are:

  • \(-\frac{48}{17} \approx -2.82\)
  • \(\frac{5}{4} = 1.25\)
  • \(-\frac{19}{34} \approx -0.56\)
  • \(-7\)

The solution that stands out is \(x = 7\) for both 2 and 4 while all others are different. Therefore, the unique equation in terms of solution is Equation 3: \(x = \frac{5}{4}\) which has a different solution than the rest.

Thus, the equation with a solution different from the rest is Equation 3: \(12x - 3 = 12\).