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

the axiom that allows b(7) to be written 7b.

what was the u.s.s. maddox doing in the gulf of tonkin prior to the august 2 attack? she was on a routine patrol. she was on an intelligence mission to intercep

what is the meaning of the phrase “catch hell”?to be told off or scoldedto be subjected to painto suffer harsh consequencesto deteriorate very quickly

the ottoman empire was populated by the a. sufis b. sunnis c. shlltes

The people of one country have decided they no longer wish to have individual state governments. They all basically have the same laws anyway, so to save on tax

what is the oxidation number of sodium (na) in pure sodium, na?

The amount of energy it takes to lift a box might be a function of which of the following? A. The time of day that you are lifting it B. The weight of the objec

which of the instruction formats would you most likely use if you had to write step-by-step instructions?

which three elements belong to the steal method of indirect characterization?

hi may someone help me out with this please