x=1 y=-4
Explanation:
We add the given eqns. to get, (2x+5y)+(3x−5y)=−18+23
∴5x=5,or,x=1.
To get y, we use, x=1 in the first eqn. & get, 2+5y=−18, or, 5y=−20, so that, y=−4.
