Multiple choice

Which of the following equation has the same root as that of $\displaystyle \frac { 3 }{ 5 } x=15$?

  1. $\displaystyle 5x+9=29$
  2. $\displaystyle x+7=10$
  3. $\displaystyle 5x=125$
  4. $\displaystyle 7x+18=278$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The equation (3/5)x = 15 simplifies to x = 15 * (5/3) = 25. Checking the options: 5x = 125 gives x = 25.

AI explanation

Solving the equation 3/5 x = 15 for x yields x = 15 times 5/3, which equals 25. To find the matching equation among the choices, we solve 5x = 125 and find x = 25. Both equations share the exact same root, making 5x = 125 the correct choice.

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