Question

Which of the following is the solution to the equation 3x - 7 = 8?

a) x = 5
b) x = 3
c) x = 6
d) x = 2

Answer 1

To solve the equation 3x - 7 = 8, we add 7 to both sides and then divide by 3 to isolate x, which gives us x = 5. Thus, the correct answer is (a) x = 5.

Step-by-step explanation:

The solution to the equation 3x - 7 = 8 can be determined by following these steps:

1. Add 7 to both sides of the equation to isolate the term with the variable on one side: 3x - 7 + 7 = 8 + 7.
2. This simplifies to 3x = 15.
3. Divide both sides of the equation by 3 to solve for x: 3x / 3 = 15 / 3.
4. This gives us x = 5.

Therefore, the correct answer is (a) x = 5.