Question

Find the value of x in the following equation.
$\frac{2}{x+10}=\frac{8}{x}$

• A. $\frac{-40}{3}$
• B. -13.33
• C. -40
• D. $\frac{40}{3}$

Answer 1

Answer: (A), (B)

The correct options are
A $\frac{-40}{3}$
B -13.33

$\frac{2}{x+10}=\frac{8}{x}\Rightarrow 2x=8\times (x+10)\Rightarrow x=4\times (x+10)\Rightarrow x=4x+40\Rightarrow -40=4x-x\Rightarrow -40=3x\Rightarrow x=\frac{-40}{3}=-13.33$