Question

The difference between a number $x$ and twice of another number $y$ is expressed as $12$. What is this statement's equation form?

• A. $x-2y=12$
• B. $x+2y=12$
• C. $x+2y=6$
• D. $2x-y=6$

Answer 1

The correct option is A $x-2y=12$

Given numbers : $x,2y$ ($\because$ twice the another number is 2y)

And it is also given that difference between $x$ and $2y$ is $12$

$\Rightarrow x-2y=12$
The resultant equation has two variables $x,y$ and both have their powers unity. So, it is a line in two variables.