Multiple choice

The root of the equation 2y = 5 (3 + y) is

  1. 5
  2. $\dfrac{1}{5}$

  3. -5
  4. $-\dfrac{1}{5}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

2y = 5(3 + y) -> 2y = 15 + 5y -> -3y = 15 -> y = -5.

AI explanation

Start with the given equation 2y = 5(3 + y) and use the distributive property to expand the right side to 15 + 5y. Bring the variable terms to one side by subtracting 5y from both sides, resulting in -3y = 15. Divide both sides by -3 to find the root, which gives y = -5.

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