yrnab20 yrnab20
  • 19-04-2021
  • Mathematics
contestada

Solve the simultaneous equations
x - 3y = -23
5x + 2y = 4

Respuesta :

madethisfortwitch1
madethisfortwitch1 madethisfortwitch1
  • 19-04-2021

Answer:

(-2,7)

x= -2

y= 7

Step-by-step explanation:

We have

x-3y= -23

5x+2y=4

Let's solve this through substitution

let's start by adding 3y in the first equation

x= -23 +3y

plug this into the second one

5(-23+3y)+2y=4

-115+15y+2y=4

17y=119

y=7

Plug this y value into our first equation

x-3(7)= -23

x-21= -23

x= -2

Answer Link
mibellav
mibellav mibellav
  • 19-04-2021
x - 3y = -23

5x + 2y = 4

Answer:

(2,7)
Answer Link

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