SOLUTION: what is the solution to this system of equations y=-3x-2 6x+2y=-4

Question 196166: what is the solution to this system of equations
y=-3x-2
6x+2y=-4
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
(1) y = -3x -2
(2) 6x +2y =-4
substitute (1) into (2)
6x +2(-3x-2) = -4
6x -6x -4 = -4
-4 = -4
,
This is an indication that the solution is all real numbers
and that the lines are coincident
.
looking at (1),, if we multiply by 2 throughout and rearrange it is the same as (2)
.
y = -3x -2
2y =-6x -4
or 6x +2y = -4, and (1) =(2) exactly
.
the lines are on top of each other
Some of the answers that fit include, (0 -2), (1, -5), (2, -8)
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