9514 1404 393
Answer:
(x, y) = (5, 3)
Step-by-step explanation:
We presume your two equations are ...
The coefficients of y are opposites, so we can add these equations to eliminate y:
(4x +y) +(3x -y) = (23) +(12)
7x = 35
x = 5
Substituting into the second equation, we get ...
3(5) -y = 12
y = 15 -12 = 3
The solution is (x, y) = (5, 3).
