Penyelesaian dari sistem persamaan 3x + 2y - 4 = 0 dan x - 3y - 5 = 0 adalah... *
Jawaban:
Penjelasan:
3x + 2y - 4 = 0
x - 3y - 5 = 0
x = 3y + 5
3(3y + 5) + 2y - 4 = 0
9y + 15 + 2y - 4 = 0
11y + 11 = 0
11y = -11
y = -11/11 = -1
x = 3(-1) + 5
x = -3 + 5
x = 2
HP = {x,y} = {2, -1}
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