christinahayes christinahayes
  • 06-11-2021
  • Mathematics
contestada

Solve the simultaneous equation 5x-4y=10. X+2y=9

Respuesta :

wizard46
wizard46 wizard46
  • 06-11-2021

Step-by-step explanation:

using ELIMINATION method

10x-8y=20

4x+8y=36

14x=56

x=56/14

x=4

NOW FOR Y.

10(4)-8y=20

40-8y=20

-8y=20-40

-8y=-20

y=-20/-8

y=2.5

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phân tích các đa thức: x^3+3x^2+3x+1