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= (5x + 3y) - (5x - 5y)
= 8y
cmiiw ya
2x - y + 3x + 4y - 5x + 5y
(2x + 3x - 5x (habis)) - y + 4y + 5y
-y + 4y + 5y
3y + 5y
8y
Jadi, hasilnya adalah 8y.