tremapp11 tremapp11
  • 01-07-2017
  • Mathematics
contestada

Solve this using the elimination method
4x - 3y = 22
2x + 8y = 30

Respuesta :

yanniecon
yanniecon yanniecon
  • 01-07-2017
4x-3y=22
-4x-16y=-60
-19y=38
y=-2
Answer Link
bcalle
bcalle bcalle
  • 01-07-2017
4x - 3y = 22
2x + 8y = 30

Multiply the second equation by - 2

    4x - 3y = 22
-2(2x + 8y = 30)
-----------------------

     4x - 3y = 22
   - 4x - 16y = - 60
----------------------------
           - 19y  = - 38
Divide both sides by - 19
               y = 2
Plug 2 into either equation and solve for x.
2x + 8(2) = 30
2x + 16 = 30
subtract 16 from both sides
2x = 14
divide both sides by 2
x = 7
(7, 2)
Answer Link

Otras preguntas

Roses and lilies are _____.
can someone help me in this I'm not to sure
The point-slope form of the equation of the line that passes through (–4, –3) and (12, 1) is y – 1 = (x – 12). What is the standard form of the equation for thi
What is the sign of the product of three integers with the same sign
PV=nRT , for V how do I figure this out?
What is an author s purpose in writing a biography? A. to tell about his or her own life B. to tell about his or her subject s life C. to tell about life at
Which of the following was NOT part of Alexander Hamilton’s plan to build a strong economy in America? a) charter a national bank b) pay off the national debt a
why is it helpful to write a number as a product of primes?
hubungan ham dengan pancasila
Why is most of the mass of an atom is located in the nucleus?