himpunan penyelesaian sistem persamaan 2x-3y=1 dan 3x+y=7 adl...

2x - 3y = 1 |×1|
3x + y = 7 |×3|

2x - 3y = 1
9x + 3y = 21
__________ +

11x = 22
x = 2

substitusi x = 2 ke persamaan (1) / (2)

2x - 3y = 1
2(2) - 3y = 1
4 - 3y = 1
-3y = 1 - 4
-3y = -3
y = 1

HIMPUNAN PENYELESAIAN
x = 2
y = 1

"SEMOGA MEMBANTU"