nevaehk2907 nevaehk2907
  • 18-08-2021
  • Mathematics
contestada

3x-4y=12
5x-2y=-8
I need the steps and answer to this equation.

Respuesta :

loconte loconte
  • 18-08-2021

Answer:

(-4,-6)

Step-by-step explanation:

3x-4y=12

5x-2y=-8

multiply #2 by "-2"

3x-4y=12

-10x-4y=16

add two equations

-7 x = 28

x= -4

plug in -4 to equation (1 or 2)

-12 - 4y = 12

-4y = 24

y = -6

(-4,-6)

Answer Link
cwrw238 cwrw238
  • 18-08-2021

Answer:

x = -4.

y = -6.

Step-by-step explanation:

3x-4y=12

5x-2y=-8       Multiply this equation by 2:

10x-4y = -16    Subtract this from the first equation:

-7x  = 28

x = -4

Substitute thin in equation 2:

3*(-4)  - 4y = 12

-12 - 4y = 12

-4y = 24

y = -6.

Answer Link

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