mycraziyoyo mycraziyoyo
  • 02-12-2020
  • Mathematics
contestada

Equations
6) 2x + 3y = -1
3x + 4y = -4

Respuesta :

felipegomes220
felipegomes220 felipegomes220
  • 02-12-2020

Answer:

x = -8

y = 5

Step-by-step explanation:

2x = -3y-1

x = (-3y-1)/2

3x + 4y = -4

3[(-3y-1)/2]+4y = -4

(-9y-3/2)+4y = -4 (x2 all)

-9y-3+8y = -8

-9y+8y = -8+3

-y = -5

y = 5

3x+4.5 = -4

3x+20 = -4

3x = -24

x = -8

checking:

2.(-8)+3.5 = -1

-16+15 = -1 (checked)

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