medswilson medswilson
  • 21-05-2015
  • Mathematics
contestada

solve each system by elimination> 9x-3y=3: 3x+8y=-17

Respuesta :

hunaifirst hunaifirst
  • 21-05-2015
9x-3y=3. |x3| 27x-9y=9
3x+8y=-17. |x9|27x+72y=-153
--------------------------------- -

-81y=162
y=-2


9x-3y=3
9x-3(-2)=3
9x+6=3
9x=3-6
x=-3/9
x=-⅓




x=-⅓
y=-2



Answer Link

Otras preguntas

Foods that allow microorganisms to grow are called parasites True Or False
Simplify each expression. Write an algebraic expression for half the sum of p and 2q increased by three-fourths q. Then simplify, indicating the properties u
what derived unit is usually used to express the density of liquids
Explain the specific reasons and general principles used in the Declaration of Independence to justify America's seperation
In the post-industrial era, what is an edge city ?
The heritable variation among members of a population comes about because of a. mutation b. adaptation c. competition d. the environment
What was a negative impact of “bonanza” farms?
Realism was a fairly influential and widespread literary movement in the United States in the latter half of the nineteenth century. Which American writer is am
what is -0.5 repeating as a fraction
What is 37.726 rounded to the nearest tenth