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 ( 83+ )
Otras preguntas
Zuri made 2 spheres using plaster. The smaller sphere has a radius of 6 cm. The larger sphere has a radius of 24 cm. How much more plaster did Zuri use for the
Why was John Tyler against the Missouri compromise?
Under which conditions does a real gas behave most like an ideal gas? (1) at low temperatures and high pressures (2) at low temperatures and low pressures (3) a
how was the idea of citizenship changed throughtout histpry
The two forms of oxygen, O2(g) and O3(g), have (1) different molecular structures and identical properties (2) different molecular structures and different prop
What were the motives behind European exploration in the 1400s? Explain
Why did hitler hope to gain by invading russia
Raul calculated that he would spend $125 on school supplies this year but he accually spent 87.50 on school supplies what is his percent of error
The modern model of the atom is based on the work of(1) one scientist over a short period of time(2) one scientist over a long period of time(3) many scientists
According to one acid-base theory, a water molecule acts as an acid when the water molecule (1) accepts an H+ (3) donates an H+ (2) accepts an OH– (4) donates a
