Which number can be placed in the first empty box in the given flowchart?

The inverse of addition is

The inverse of subtraction is

The inverse of multiplication is

the inverse of division is

Which number goes into the empty box?

Which of the following goes into the empty box?

Refer to the given flowchart. What is the equation to be solved?

Complete the given flowchart. What is the equation to be solved?

Refer to the given flowchart. What is the solution?

What would the inverse operation be?
$$6+t=5$$  

What operation is shown in the problem?
$$2s=19$$  

What operation is shown in the problem?
$\frac{r}{7}=15$

What would the inverse operation be?
$\frac{r}{7}=15$

What operation is shown in the problem?
$$14=3q$$  

What would the inverse operation be?
$$14=3q$$