Respuesta :

Answer: -4

Step-by-step explanation:

-1.5(4-r)=-12

Divide both sides by -1.5

4-r=8

-r=4

r=-4

Therefore, the value of r is -4

-1.5(4-r)=-12
-6+1.5r=-12
1.5r = -6
R = -4