Question

Solve the system by elimination {3×+2y=17
4×-2y=4}

Answer 1

3x + 2y = 17
4x - 2y = 4
7x = 21
7 7
x = 3
3(3) + 2y = 17
9 + 2y = 17
- 9 - 9
2y = 8
2 2
y = 4
(x, y) = (3, 4)