How do you solve 15t+4=49?

Mar 4, 2018

$t = 3$

Explanation:

Begin by subtracting four from both sides:

$15 t + \cancel{4 - 4} = 49 - 4$

$15 t = 45$

Now we divide both sides by $15$ to isolate $t$:

$\frac{\cancel{15} t}{\cancel{15}} = \frac{45}{15}$

$t = 3$

Mar 4, 2018

$t = 3$

Explanation:

To solve an equation, we always want the $x$ or $t$ on its own. Therefore we $- 4$ from both sides to cancel out the $+ 4$ on the side with $t$.

$15 t + 4 = 49 \to 15 t = 45$

as $49 - 4 = 45$, it changes to $45$

Now to solve an equation like this we divide the value, by how much of the $x$, $t$ or another unknown value.

$\therefore$ $t = \frac{45}{15} = 3$