# How do I solve for y in 21-2y=24?

Mar 21, 2018

$y = - 1.5$

#### Explanation:

First, you isolate the variable by transferring the integer

$- 2 y = 24 - 21$

Then you simplify the R.S.

$- 2 y = 3$

Finally, you divide both sides by $- 2$ to get your answer

$\frac{- 2 y}{-} 2 = \frac{3}{-} 2$

$y = - \frac{3}{2}$