0.345-2.34
=0.345+(-2.34)
=(-1.995
Swap the shortest and longest pencil's places. You don't have to move the middle pencil.
In order to solve by elimination, let's multiply the first equation by -2. This way, when we add the equations, the variable y will be canceled out:

Now, adding the equations, we have:

Now, calculating the value of y, we have:

Therefore the solution is (3, 0).
The answer is B. Hope you get it.