Question

Can y’all plz help me

Answer 1

2r-9=-18
+9 +9
2r= -9
The answer is r=-9

Answer 2

Answer: 4.5

Step-by-step explains:  1) 2r - 9 = -18

                                          2r - 9 + 9 = -18 + 9

                     2)  ( 9 + 9 )      Add the numbers

                       ( -18 + 9 )    add the numbers

                                            2r = -9

3) Divide both sides of the equation by the same term

4) Cancel terms that are in both the numerator and denominator

                                            r = 9/2 = 4.5