kak, bantuin saya kak!! pliss ini doankk
Jawaban:
{x, y}= {35/4, 7/2}
Penjelasan dengan langkah-langkah:
1/2x-3/4y= 7/4
-------------------- ×4
4/2x-12/4y= 7
2x-3y= 7
2/5x-1/3y= 7/3
6x-5y= 35
2x-3y= 7 (×3)= 6x-9y= 21
6x-5y= 35= 6x-5y= 35
----------------------------------------- -
-4y= -14
y= 14/4= 7/2
2x-3y= 7
2x-3(7/2)= 7
2x-21/2= 7
2x= 35/2
x= 35/4
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