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x - 2y = 2
________-
-y = -1
y = 1
Cari nilai x
x - 2y = 2
x - 2(1) = 2
x - 2 = 2
x = 2+2
x = 4
Nilai dari
2x - 5y = 2(4) - 5(1)
= 8 - 5
= 3
Jadi nilai dari 2x - 5y = 3
x - 2y = 2
------------- -
-y = -1
y = -1/-1
y = 1
Masukkan nilai y :
x - 2y = 2
x - 2(1) = 2
x - 2 = 2
x = 2 + 2
x = 4
Jadi, x = 4 dan y = 1
Maka :
2x - 5y
= 2(4) - 5(1)
= 8 - 5
= 3
Semoga membantu :)