Tentukanhp dengan 3 metode a.2x - 3y =7 dan 3x + y =5 B. 5x+2y=-1 dan 2x +3y=-1

A.) ______________
2x - 3y = 7 |3|
3x + y = 5 |2|

6x - 9y = 21
6x + 2y = 10
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-11y = 11
y = -1

2x - 3x = 7
2x - 3 . (-1) = 7
2x + 3 = 7
2x = 4
x = 2
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