9
algebraIf , what is the value of ?
A
12
B
7
C
1.75
D
28
Correct Answer: D
Choice Choice D is the correct answer.
- Start with the equation:
- Add 2 to both sides:
- Simplify:
- Multiply both sides by 4:
- Simplify:
- Verify: ✓
Choice Choice A is incorrect because this results from subtracting 2 from 5: , then multiplying by 4: . Wrong inverse operation.
Choice Choice B is incorrect because this is the value of . You must multiply by 4.
Choice Choice C is incorrect because this results from dividing 7 by 4: . We need to multiply.