kani51
kani51 kani51
  • 04-03-2020
  • Mathematics
contestada

Use substitution to solve the system

2y - 8 = x

2x + 3y = -2

Respuesta :

dannielle
dannielle dannielle
  • 04-03-2020

Answer:

x=2y-8

We use the substitution of x in the second equation

2*(2y-8)+3y= -2

4y-16+3y=-2

7y-16= -2

7y= -2 +16

7y=14

y=14Ș7

y=2

so x= 2*2 -8

    x=4-8

    x=-4

the solution is  (x,y)=(-4, 2)

Step-by-step explanation:

Answer Link

Otras preguntas

what is one way the Aztecs empire made money after they had won a war? and also what is a word for crafted stonework?
What power does the principle judicial review bestow on the judicial branch?
The mass of a proton is approximately equal to the mass of (1) an alpha particle (3) a neutron (2) an electron (4) a positron
Name two new developments in the way Americans work.
I am struggling hard out with linear algebra in math level one
Which reaction occurs when hydrogen ions react with hydroxide ions to form water? A. substitution B. saponification C. ionization D. neutralization
to determine the speed of an object,divide distance by acceleration?? true or false explain please i need help!!!!!!!!!!!!!!!!!!!!!!
Which balanced equation represents an endothermic reaction? (1) C(s) + O2(g) → CO2(g) (2) CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) (3) N2(g) + 3H2(g) → 2NH3(g) (4) N2
12 bags of plaster do 54m squared, how many bags are needed for 36m squared
CeeCee recorded the number of necklaces for sale at 10 different locations and then arranged the numbers from smallest to largest. The numbers of necklaces for