megangriff28 megangriff28
  • 13-05-2021
  • Mathematics
contestada

Solve the following simultaneous equations using an algebraic (not graphical) method.
3x - 2y = 14
7x + 3y = 25

Respuesta :

deborahabanner
deborahabanner deborahabanner
  • 13-05-2021

Answer:

x=4

y= -1

Step-by-step explanation:

(3x-2y=14)×3

(7x+3y=25)×2

9x-6y= 42

14x + 6y =50

9x-42=6y

-14x+50=6y

9x-42= -14x+50

23x = 92

x=4

3(4)-2y=14

12-2y =14

-2y=2

y= -1

Answer Link

Otras preguntas

Economists warn that the nation is slipping into a recession. Which fiscal policies will the federal government most likely take to help the economy grow? (4 po
The Native Americans crossed the ________ to get to North America
can someone plesse help me
An item sells for 40$. The sales tax on the item is 8% . What is the sales tax and total cost ?
Does anyone know what the answer to this is? - 14/3 x - 11/6 (negative 14/3 times negative 11/6) Thanks! :)
describe the condition of the house in the story snake and the mirror
what is hydrocarbon plz help
PLS I DONT HAVE LONG Please explain the concept and give at least one real world example that demonstrates the concept of Investigating Quadratics. Thank you
which among following is called "gift of the nile"?a.chinab.indiac.iraqd.egypt
What was the role of compromise at the convention in Philadelphia?