Answer:
One of them must be zero.
Step-by-step explanation:
For something to equal zero it needs to be multiplied by a value of zero.
Answer:
13/18
Step-by-step explanation:
The correct answer is the first option.
If you want to use elimination, you can sum the two equations for example, so that the x's simplify:
Plug this value for y in one of the equations to derive the value of x:
So, the solution is
Answer:
x
=
4,-4
Step-by-step explanation: