Y=-x-1 y=-2x+1 ?
2 Answers
Mar 9, 2018
Explanation:
Substitute the
Add
Subtract
Divide both sides by
Mar 9, 2018
Linear algebra states that x=2, making y=-3
Explanation:
Linear algebra allows us to add and subtract whole equations from each other, like so:
Taking the solution from the bit of linear algebra we've done:
We can now plug our solution for