Question

How do you solve this using the elimination method of systems of equations?

Answer 1

-3x - 4y = -1
3x - y = -4

-5y=-5

y=1

3x-(1)=-4

3x-1=-4

3x=-3

x=-1

(-1,1)

Answer 2

- 3x - 4y = -1
3x- y= - 4
------------------ } +
-4y-y=-1-4
- 5y= -5
y= -5/-5
y=1

3x-1=-4
3x= -4 +1
3x= - 3
x= -3/3
x= -1
Solution : (-1,1)