jasmine144 jasmine144
  • 27-01-2017
  • Mathematics
contestada

how to solve y=3x+2 and -4x+2y=8 with elemination

Respuesta :

David1993
David1993 David1993
  • 27-01-2017
y = 3x +2

And

-4x +2y = 8


Les't do the replacement of y = 3x+2
In the equation of donw

-4x + 2.( 3x+2) = 8

Now do the distributive

-4x + 2.3x + 2.2 = 8

-4x +6x+4=8

2x +4 =8

2x = 8-4

2x = 4

x = 4÷2

x = 2


Then,

y = 3x +2

y = 3.2 +3

y = 8

That is,

(x,y) = (2,8)

I hope this has helped.
Answer Link

Otras preguntas

If a car headlight's light travels at the speed of light, then does the car technically travel at the speed of light since the headlights are part of a car, an
what are some behavioural adaptation for a cactus
Who first used the phrase "Iron Curtain"? Kennan Roosevelt Truman Churchill
will the opposite of a number always,sometimes,or never be greater than the number itself
What court case established the principle that separate education is inherently unequal? Plessy v. Ferguson Sweatt v. Painter McLaurin v. Oklahoma State Regents
An eighteenth century painting shows a religious leader with upraised arm, standing above a crowd of admirers and looking into the distance. What st communicati
can you help me on this problem
what is the limit in kilograms
A sentence with autotroph
How are elements identified in terms of their atoms?