02-11-2016
Mathematics

contestada

-x+2y=9
-7x-2y=-1
Solve each system by elimination

Respuesta :

03-11-2016

x - 2y = - 9
7x + 2y = 1

x - 2y = - 9
(+)
7x + 2y = 1
___________
8x = - 8

x = - 1

- 1 - 2y = - 9
2y = 8
y = 4

i am a mathematics teacher. if anything to ask please pm me

Answer Link

Otras preguntas

Kendra is very polite to her teacher and her mother. when she speaks to her younger brother, she tends to be rude and condescending. she is much nicer to him wh

The name given to the 1 billion people worldwide that deny the existence of god is ___________. analects secularists dalai lama karma

what was the name of the original Cambodian empire

The ________ was established by the texas constitution of 1876 to support the university of texas and texas a&m university systems. (use)

which statements about landscapes by thomas Cole, vincent van gohg shen zhou and ansela adams are true.

What happened to indentured servants after they were freed?

131i has a half-life of 8.04 days. assuming you start with a 1.53 mg sample of 131i, how many mg will remain after 13.0 days __________? a.0.835 b.0.268 c.0.422

The raised vegetable garden in Susan's yard is in the shape of a rectangular prism with a volume of 48 cubic feet and a height of 3/4 foot. PLEASE DO THE WORK A

In "And Oh—That the Man I Am Might Cease to Be—" by D. H. Lawrence, what is the emotional state of the speaker? Support your answer with details from the poem.

The first wave of European immigrants to arrive to the United States in the nineteenth century came from _____.