LouiseE254765 LouiseE254765
  • 03-11-2022
  • Mathematics
contestada

Find the solution of the system of equations. 2x + 3y=-4 , x + 9y = 13

Respuesta :

SaahilT499326 SaahilT499326
  • 03-11-2022

(-5, 2)

1) Solving this Linear System with the method of Addition/Elimination:

2x + 3y=-4

x + 9y = 13​ x-2 Multiply the whole equation by -2

2x +3y = -4

-2x -18y= -26

--------------------

-15y= -30

15y= 30 Divide both sides by 15

y = 2

2) Plug into the simpler equation y=2

x +9y = 13

x + 9(2) = 13

x +18 = 13

x =13-18

x= -5

3) So the answer is (-5, 2)

Answer Link

Otras preguntas

Write an essay What, specifically, are you doing now to establish financial independence?
Exposure is the number of units remaining to lease expressed as a percentage. What is the exposure on a property with 892 units if: 106 are vacant, 19 leased an
what is the answer for 42/ 2 +36
what causes enhanced greenhouse effect
Jacob’s favorite short story is titled “Greatest of Ease.” It’s about a circus trapeze artist recovering after a particularly nasty fall. Jacob writes a review
_____ formation absorbs ultraviolet radiation that would be lethal if it reached the surface. Hydrogen Helium Ozone
uyroiiriiriiririiiririirriirr
The Bengal rice famine was indirectly the result of this A) Drought B) Flood C) Fungus D) Insect infestation
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) have which of the following common properties? a) They are both greenhouse gases b) They both co
Identify the vertex of each parabola. Tell whether it is minimum or maximum. PLEASE HELP!!!