Question

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

Answer 1

x = -4.

y = -6.

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 2

(-4,-6)

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)