Answer:
(5, 12 )
Explanation:
3x + 2y = 39 → (1)
5x - y = 13 → (2)
multiplying (2) by 2 and adding to (1) will eliminate y
10x - 2y = 26 → (3)
add (1) and (3) term by term to eliminate y
13x + 0 = 65
13x = 65 ( divide both sides by 13 )
x = 5
substitute x = 5 into either of the 2 equations and solve for y
substituting into (1)
3(5) + 2y = 39
15 + 2y = 39 ( subtract 15 from both sides )
2y = 24 ( divide both sides by 2 )
y = 12
solution is (5, 12 )