# How do I solve 15-4t=3 because when I tried to solve it kept becoming negative and how would it become positive from negative when you divide a positive and a negative because the output between that is always negative?

May 16, 2018

$t = 3$

#### Explanation:

$1.$ Subtract $15$ from both sides first,

$15 - 4 t - 15 = 3 - 15 \text{ }$leaving you with

$- 4 t = - 12.$

$2$. Divide by $- 4$ to isolate t .

$t = \frac{- 12}{-} 4$

$3.$ Answer is $t = 3$

May 16, 2018

$t = 3$

#### Explanation:

$15 - 4 t = 3$

$15 - 15 - 4 t = 3 - 15$

$\frac{- 4 t}{- 4} = \frac{- 12}{- 4}$

$t = 3$

May 16, 2018

$t = 3$

#### Explanation:

$\textcolor{w h i t e}{\times \times} 15 \textcolor{b l u e}{- 4 t} = 3 \text{ } \leftarrow$ add $4 t$ to both sides

$15 - 4 t + 4 t = 3 \textcolor{b l u e}{+ 4 t}$

The term in $t$ is now positive on the right. Isolate it.

$15 \textcolor{w h i t e}{\times \times \times x} = 3 \textcolor{b l u e}{+ 4 t} \text{ } \leftarrow$ subtract $3$ from both sides

$15 - 3 \textcolor{w h i t e}{\times \times} = 3 + 4 t - 3$

$12 \textcolor{w h i t e}{\times \times \times x} = 4 t \text{ } \leftarrow$ divide by $4$

$3 \textcolor{w h i t e}{\times \times \times \times} = t$