Question

Which equation is true?

A. (4 = 8) = 1 = 8 = (4 : 1)
O B. (4 - 8) + 1 = 4 - (8 + 1)
C. (4 - 8) - 1 = 4 - (8 - 1)
D. (4 + 8) + 1 = 4+ (8 + 1)

Answer 1

D. (4 + 8) + 1 = 4 + (8 + 1).

Explanation:

Let’s evaluate each equation:

A. (4 = 8) = 1 = 8 = (4 : 1) This equation is not valid because the equals sign (=) is used incorrectly.

B. (4 - 8) + 1 = 4 - (8 + 1) This simplifies to -4 + 1 = 4 - 9, which further simplifies to -3 = -5. This equation is not true.

C. (4 - 8) - 1 = 4 - (8 - 1) This simplifies to -4 - 1 = 4 - 7, which further simplifies to -5 = -3. This equation is not true.

D. (4 + 8) + 1 = 4 + (8 + 1) This simplifies to 12 + 1 = 4 + 9, which further simplifies to 13 = 13. This equation is true.

So, the correct answer isLet’s evaluate each equation:

A. (4 = 8) = 1 = 8 = (4 : 1) This equation is not valid because the equals sign (=) is used incorrectly.

B. (4 - 8) + 1 = 4 - (8 + 1) This simplifies to -4 + 1 = 4 - 9, which further simplifies to -3 = -5. This equation is not true.

C. (4 - 8) - 1 = 4 - (8 - 1) This simplifies to -4 - 1 = 4 - 7, which further simplifies to -5 = -3. This equation is not true.

D. (4 + 8) + 1 = 4 + (8 + 1) This simplifies to 12 + 1 = 4 + 9, which further simplifies to 13 = 13. This equation is true.

So, the correct answer is D. (4 + 8) + 1 = 4 + (8 + 1).

Answer 2

D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true