Question

\(\dfrac{x}{12}\)-\(\dfrac{x}{18}\)=\(\dfrac{3}{4}\)

Answer 1

\(\dfrac{x}{12}\)-\(\dfrac{x}{18}\)=\(\dfrac{3}{4}\)
<=>\(\dfrac{3x}{36}\)-\(\dfrac{2x}{36}\)=\(\dfrac{27}{36}\)
<=>\(\dfrac{3x}{36}\)-\(\dfrac{2x}{36}\)-\(\dfrac{27}{36}\)=0 
=>3x - 2x - 27 = 0
<=>x - 27 = 0
<=>x        = 27

Answer 2

\(\dfrac{x}{12}-\dfrac{x}{18}=\dfrac{3}{4}\\ \Leftrightarrow\dfrac{3x}{36}-\dfrac{2x}{36}=\dfrac{27}{36}\\ \Leftrightarrow3x-2x=27\\ \Leftrightarrow x=7\)

Answer 3

\(\dfrac{x}{12}-\dfrac{x}{18}=\dfrac{3}{4}\\ \Leftrightarrow\dfrac{3x}{36}-\dfrac{2x}{36}=\dfrac{27}{36}\\ \Leftrightarrow3x-2x=27\\ \Leftrightarrow x=27\)