Question

I need help answering this r + 7 = -3 ?

Answer 1

The value of r is -10

Here, given the equation, we want to find the value of r

Mathematically, this can be obtained by moving the 7 to the right-hand side of the equation

This helps to isolate the r. When this kind of movement is done, the sign of the number being moved changes to the opposite. We can now proceed to add up the numbers on the right hand side

we have;

`\begin{gathered} r\text{ + 7 = -3} \\ r\text{ = -3-7} \\ r\text{ = -10} \end{gathered}`