Respuesta :

Answer:

-1

Step-by-step explanation:

3-2*r=5

-2*r=5-3

-2*r=2 /:(-2)

r= -1

Step-by-step explanation:

ANSWER:-

[tex] \sf{3 -2 \times r \: = 5}[/tex]

[tex] \sf{3 - 2r = 5}[/tex]

[tex] \sf{ - 2r = 5 - 3}[/tex]

[tex] \sf{ - 2r = 2}[/tex]

[tex] \sf{ r = \dfrac{\cancel{2}}{\cancel{-2}}}[/tex]

[tex] \boxed{ \bf{r = - 1}}[/tex]