toomuchsus toomuchsus
  • 18-12-2017
  • Mathematics
contestada

What is the solution to 2x-3y=-9
3x+y=-8

Respuesta :

naomi479xx
naomi479xx naomi479xx
  • 18-12-2017
⓵
You need to simplify the left side in order to isolate the x and the ỿ :

2x -3ỿ = -9
÷2 ÷2

x -3ỿ = -4,5
÷-3 ÷-3

x + ỿ = 1,5

⓶
You do the exact same thing as the first one, except with different numbers :

3x + ỿ = -8
÷3 ÷3

x + ỿ = -2,6 periodic

There you go! I hope this helped! ☻
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