Question

1. Make 't' the subject of this formula r = 7(t + 3)​

Answer 1

Answer:

The expression for $t$ is     $t=\dfrac{r-21}{7}$

Step-by-step explanation:

The given expression is,

$r=7(t+3)$

Expand the brackets on the right-hand side, we get

$r=7t+21$

Now subtract 21 from both sides of the equation,

$r-21=7t$

Divide both sides by 7,

$t=\dfrac{r-21}{7}$

This is the required expression.