Seudónimo Seudónimo
  • 15-02-2017
  • Mathematics
contestada

Which equation has solution x = -3?

A)
2x - 7 = -1


B)
3x + 8 = 1


C)
1
2
x + 8 = 10
Eliminate

D)
1
2
(2x - 6) = -6

Respuesta :

garydesir1
garydesir1 garydesir1
  • 23-03-2017
Hi Brainiac

1/2(2x-6) = -6
We need to distribute
(1/2)(2x) + (1/2)(-6) = -6
2x/2 + -6/2 = -6
x - 3 = -6
x = -6 + 3
x = -3
Thus, The answer is D

I apologize for the late answer :(
Answer Link

Otras preguntas

Identify a structure, in organisms that do not have kidneys, that is adapted to regulate water balance.
what is the definition of momentum
After World War I, the rise of Benito Mussolini in Italy and the rise of Adolf Hitler in Germany are most closely associated with (1) the development of fascism
30 Which term represents a type of nuclear reaction? (1) condensation(2) vaporization (3) single replacement(4) natural transmutation
how is the electoral college related to the president
Was angered when MacArthur demanded an unconditional surrender from North Korea during the Korean War
43 Which element reacts spontaneously with 1.0M HCl (aq) at room temperature? (1) copper (3) silver(2) gold (4) zinc
Commodore Matthew Perry is best known for taking which action? (1) leading the British East India Company (2) rescuing Europeans during the Boxer Rebellion (3)
what is the definition of momentum
In which country did the Industrial Revolution begin? a. Russia b. United States c. Germany d. Great Britain