How do you solve using elimination of #2x+5y=17# and #6x-5y=-9#?
Add the equations to eliminate y and solve for x, and then substitute back to solve for y
We wish to solve for one of the variables by eliminating the other with addition or subtraction.
Note that we have
To do this, we can add the second equation to the first.
Dividing both sides by 8 gives
Then we simply substitute our result for
So the solution is