9
algebra

Solve: 6x=486x = 48

A

8

B

54

C

42

D

288

Correct Answer: A

Choice Ahoice C is the correct answer. We divide by the coefficient to isolate xx.

  1. Start with the equation: 6x=486x = 48
  2. Divide both sides by 6: x=486x = \frac{48}{6}
  3. Simplify: x=8x = 8
  4. Verify: 6(8)=486(8) = 48

💡 Multiplication Tables: Knowing that 6×8=486 \times 8 = 48 helps you solve this instantly.

Choice Ahoice D is incorrect because this results from subtracting: 486=4248 - 6 = 42. Subtraction is not the inverse of multiplication.

Choice Ahoice B is incorrect because this comes from adding: 48+6=5448 + 6 = 54. Addition doesn't undo multiplication.

Choice Ahoice C is incorrect because this results from multiplying: 48×6=28848 \times 6 = 288. This compounds the problem instead of solving it.