\[6=-3+r\]
1
Regroup terms.
6=r−36=r-3

2
Add 33 to both sides.
6+3=r6+3=r

3
Simplify  6+36+3  to  99.
9=r9=r

4
Switch sides.
r=9r=9

Done

Check Answer ▼
Copy Link
How can we make this solution more helpful?
Cymath foriOSAndroid