SPLDVhimpunan penyelesaian
x- 4y= 11 atau x = 4y + 11 , sub 7x - y = - 47(4y+ 11) - y= - 428 y + 77 - y =- 427y = - 81y = - 3
x= 4y + 11x= 4(-3) + 11x= -1 HP x ,y = (- 1 -3)
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SPLDV
himpunan penyelesaian
x- 4y= 11 atau x = 4y + 11 , sub 7x - y = - 4
7(4y+ 11) - y= - 4
28 y + 77 - y =- 4
27y = - 81
y = - 3
x= 4y + 11
x= 4(-3) + 11
x= -1
HP x ,y = (- 1 -3)