selesaikan persamaan linear menggunakan metode eliminasi x-3y=-7 2x+3y=4

Materi : SPLDV

x - 3y = -7 ........ ×2
2x + 3y = 4 ...... ×1
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2x - 6y = -14
2x + 3y = 4
◆◆◆◆◆◆◆◆◆◆◆◆[-]
-9y = -18
y = 2

x - 3y = -7
x - 3(2) = -7
x - 6 = -7
x = -7 + 6
x = -1

Hp = {- 1 , 2 }

x - 3y = -7
2x+3y = 4
——————(+)
3x = -3
x = -3/3
x = -1


2x+3y = 4
2(-1)+3y = 4
-2+3y = 4
3y = 4+2
3y = 6
y = 6/3
y = 2

HP = {-1 & 2}

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