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

witch was NOT an outcome of the execution of Czar Nicholas II and his family? - Bolsheviks came to power - End of the Romanov dynasty - Pressure on the other Al
What is the value of t? 3/5t - 4 - 7/10t = -2 A. -20 B. -5 C. 5 D. 20
Commission of sales on office equipment is paid at the rate of 12%. last week $2860 worth of office equipment was sold.
Simplify. 5.9 + (–3.2) –2.7 2.7 9.1 –9.1
Which half reaction is most easily reduced? Ag+ + e− → Ag = 0.80 V Br2 + 2e− → 2Br− = 1.07 V Fe3+ + e− → Fe2+ = 0.77 V Zn2+ + 2e− → Zn = –0.76 V
A punch recipe that serves 24 people calls for 4 liters of lemon-lime soda, 2 pints of sherbet, and 6 cups of ice. How much of each ingredient would you need to
I need help please is it A b c or d there is a pic
Under President Coolidge, the concerns of Mexican Americans and African Americans were?
check the pic out please help me
complete the bar model.then solve .Abby has 16 grapes.jason has 9 grapes. how many more grapes dose Abby have than Jason