Write an algebraic expression and solve it. A number decreased by $10$ is twice the number.

Given: A number decreased by $10$ is twice the number.

To do: To write an algebraic expression and solve it.

Solution:

Let $x$ be the number. According to the question

$x-10=2x$

$\Rightarrow x-2x=10$

$\Rightarrow x=-10$
 

Thus,  the number is $-10$.

Tutorialspoint

Updated on: 10-Oct-2022

117 Views

Kickstart Your Career

Get certified by completing the course

Get Started