Respuesta :

Answer:

r = [tex]2\frac{1}{4}[/tex]

Step-by-step explanation:

choirnerd06

Answer:

r = -2.25

Step-by-step explanation:

10r+12=6r+3

     -3       -3

10r+9=6r

-10r     -10r

9=-4r

9/-4=4r/-4

or

10r+12=6r+3

     -12     -12

10r=6r-9

-6r  -6r

4r=-9

4r/4=-9/4

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