Question

Complete the proof by supplying the missing information:

If x/3 + 1 = -4, then x = _______.

Options:
A) -15
B) -9
C) -7
D) -12

Answer 1

To solve the equation x/3 + 1 = -4, isolate x by subtracting 1 from both sides and multiplying by 3.

Step-by-step explanation:

To solve the equation x/3 + 1 = -4 for x, we need to isolate x on one side of the equation. Here are the steps:

1. Subtract 1 from both sides: x/3 = -5
2. Multiply both sides by 3 to get rid of the fraction: (3)(x/3) = (3)(-5)
3. Cancel out the 3 and simplify: x = -15

Therefore, the missing information is x = -15. So, the correct answer is A) -15.