Question

Solve for the variable in 6⁄18 = x⁄36 A. 12 B. 6 C. 3 D. 9

Answer 1

$\dfrac{6}{18} = \dfrac{x}{36}$ 

$\dfrac{1}{3} = \dfrac{x}{36}$ 

$\dfrac{1}{3} * 36 = x$   $|Multiply \ by \ 36|$

$x= \dfrac{36}{3}$  $|Divide \ both \ sides \ by \ 3|$

$x=12$