Cari nilai x dan y 5x+3y=25 8x-3y=40

~SPLDV

y = y

(25 – 5x)/3 = (8x – 40)/3

25 – 5x = 8x – 40

13x = 65

x = 5

Maka :

y = ( 8x – 40 ) / 3

y = ( 40 – 40 ) / 3

y = 0