Question

Determine which equations below have x = 15 as a solution. Choose ALL that apply.

A. 3x = 15
B. = 1.5
C. X - 12 = 27
D. X + 4 = 19
E. 2x = 10

Answer 1

After substituting x with 15 in each equation, we find that x = 15 is a solution to equations A, B, and D.

Step-by-step explanation:

To determine which equations have x = 15 as a solution, we need to substitute x with 15 in each equation and check if it's true.

• For equation A (3x = 45), substituting x with 15 gives us 3(15) = 45, which simplifies to 45 = 45. This is true, so x = 15 is a solution to equation A.
• For equation B (x/10 = 1.5), substituting x with 15 gives us 15/10 = 1.5, which simplifies to 1.5 = 1.5. This is true, so x = 15 is a solution to equation B.
• For equation C (x - 12 = 27), substituting x with 15 gives us 15 - 12 = 27, which simplifies to 3 = 27. This is false, so x = 15 is not a solution to equation C.
• For equation D (x + 4 = 19), substituting x with 15 gives us 15 + 4 = 19, which simplifies to 19 = 19. This is true, so x = 15 is a solution to equation D.
• For equation E (2x = 10), substituting x with 15 gives us 2(15) = 10, which simplifies to 30 = 10. This is false, so x = 15 is not a solution to equation E.

Therefore, x = 15 is a solution to equations A, B, and D.