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⇒x+3y=19
5x-3(x+y)=22 ⇒5x-3x-3y=22
⇒2x-3y=22
⇒x+3y=19
⇒2x-3y=22
di jumlahkan hasilnya menjadi 4x=41 ⇒x=41/4 =10,25
untuk mencari y ⇒ x + 3y - 19
⇒ 10,25 + 3y = 19
⇒ 3y = 19-10,25
⇒ 3y = 8,75
⇒ y = 8,75/3 =2,91