Seudónimo Seudónimo
  • 02-02-2016
  • Mathematics
contestada

Solve 2a + 21 = 8a - 9, step by step

Respuesta :

Аноним Аноним
  • 02-02-2016
2a + 21 = 8a - 9

Combine like terms. 

2a + 21 = 8a - 9
-2a          -2a

21 = 6a - 9 
+9          +9

30 = 6a
6a/6 = 30/6
a = 5

Answer: a = 5
Answer Link

Otras preguntas

which term describes the soviet policy the expanded freedom of the press and allowed criticism of the communist party during the cold warA: containment B:Perest
100 POINTS!!! HELP ME ASAP
CONSTRUCTED RESPONSE PARAGRAPH: In the short story, the author describes her life during her “day away” but provides few details about her “normal” life. Using
Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0
how are elements arranged in a periodic table
60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. What is the probability tha
I’m confused on how to work the pie charts
rewrite so the subject can be Y in the formula d=m-y/y+n
Evaluate 9(b+2) -5b for b=1/4
In which part of an interview would you give some indication of the relationship's future? opening body closing