Respuesta :

Answer:

  1. r<2
  2. r>-5

Step-by-step explanation:

  1. Subtract 8 from both sides.
  2. Simplify.
  3. Add 2r to both sides.
  4. Simplify.
  5. Divide both sides by 4.
  6. Simplify 8/4 to 2.

  1. Subtract r from both sides.
  2. Simplify.
  3. Subtract 21 from both sides.
  4. Simplify.
  5. Divide both sides by 6.
  6. Then Simplify 30/6 to 5.