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
VER TODAS LAS RESPUESTAS ( 14+ )
Otras preguntas
*please include an explanation!* Suppose an investment of $8,200 doubles in value every 7 years. How much is the investment worth after 28 years?
The freudian term for releasing instinctual aggressive energy is
How did jazz blend cultural influences and cross-cultural divides?
A 7.50-g sample of iron is heated in oxygen to form an iron oxide. if 10.71 g of the oxide is formed, what is its empirical formula
The heliocentric theory stated that the earth was the center of the solar system and that the sun circles it. a. True b. False
30 is 60% of what number?
Catabolic metabolism refers to pathways that break down compounds to smaller, simpler units. a. true b. false
What therapeutic effect does the nurse expect to identify when mannitol is administered parenterally to a client with cerebral edema?
Jing spent 1/3 of her money on a pack of pens, 1/2 of her money on a pack of markers, and 1/8 of her money on a pack of pencils. What fraction of her money is
How many atoms in 4.75 moles of gold, au?