dianamedinazepeda21
dianamedinazepeda21 dianamedinazepeda21
  • 21-07-2016
  • Mathematics
contestada

8x+14y=4. -6x-7y=-10

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 21-07-2016
{  8 x + 14 y = 4        * ( 7 )
  -6 x - 7 y = - 10      * ( 14 )


  56 x + 98 y = 28
- 84 x - 98 y = -140
-------------------------
-28 x = -112

x = - 112 / - 28   * ( - 1 )

x = 112 / 28

x = 4

for y :

8 * ( 4 ) + 14 y = 4

32 + 14 y = 4

14 y = 32 - 4

14 y = 28

y = 28 / 14

y = 2


hope this helps!




Answer Link

Otras preguntas

What is one way to punctuate a compound sentence correctly by joining two independent clauses with what
What were the Clean Water Act and the Safe Drinking Water Act designed to do? create the Environmental Protection Agency manage the Superfund program for water
Which of the following is not transported by the circulatory system? A. Blood B. Food C. Oxygen D. Carbon dioxide Which of the following would not be consid
Perfect competition is mot necessary for the theory of competitive pricing to be practical true or false
Find the smallest number by which 60 must be multiplied to give a perfect square?
Which equation is equivalent to the given equation.
Where does the stress build-up and eventually released within a fault?
What is supply and demand and how does it affect businesses?
Mechanical energy is equal to
And event organizer is reserving rooms for two companywide events. For the quarterly meeting this month she reserved 2 conference rooms and 5 ballrooms which ca