Multiple choice

Solve the linear equation: $\cfrac { 1 }{ x+1 } =\cfrac { 2 }{ x+10 } $

  1. $4$
  2. $6$
  3. $8$
  4. $10$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

1/(x+1) = 2/(x+10). Cross-multiply: x + 10 = 2(x + 1). x + 10 = 2x + 2. 10 - 2 = 2x - x. x = 8.

AI explanation

Cross-multiply the fractions to obtain 1(x + 10) = 2(x + 1). Expanding the brackets gives x + 10 = 2x + 2. Subtracting x and 2 from both sides yields x = 8.