agustin10 agustin10
  • 31-05-2020
  • Mathematics
contestada

2х - Зу = 4
5x - Зу = 7

Respuesta :

Vera34
Vera34 Vera34
  • 31-05-2020

Step-by-step explanation:

2x - 3y = 4

5x - 3y = 7

Simultaneous equation

Through elimination method

2x - 3y= 4

+5x -3y = 7

7x =11

Divide bith sides by 7

x = 1 4/11

substitute x for 1 4/11 in the first equation

2(11/4) - 3y = 4

22 - 3y = 4

22 - 4 = 3y

18 = 3y

Divide bith sides by 3

y = 6

Therefore,

x = 11/4

y = 6

Answer Link
ethan7080
ethan7080 ethan7080
  • 31-05-2020
So, use substitution to solve for X and Y.
X = 11/7, Y= 2/7

How I got those answers are in the picture at the bottom.

Hope that helps.
Ver imagen ethan7080
Answer Link

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