Question

Coba kerjakan
2x + 3y = 13
3x + 4y = 19

menggunakan metode eliminasi

Answer 1

2x + 3y = 13
3x + 4y = 19
6x + 9y = 39
6x + 8y = 38 -
y = 1

2x + 3y = 13
2x + 3(1) = 13
2x = 10
x = 5

Answer 2

2x + 3y = 13 (x3)
3x + 4y = 19 (x2)
sehingga
6x + 9y = 39
6x + 8y = 38  -
        y = 1
cari nilaix, maka subtitusikan y yg diketahui
2x + 3y = 13
2x + 3x1 = 13
2x + 3 = 13
2x = 13-3 = 10
2x = 10
x = 5

sehingga HP = {x,y} = {5,1}