substitusi x - 2y = 5 , x + y = 11
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substitusi x - 2y = 5 , x + y = 11
1 Jawaban
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1. Jawaban gracesitompul02
x - 2y = 5
x + y = 11
________ _
-3y = -6
y = 2
x - 2y = 5
x -2 (2) = 5
x - 4 = 5
x = 9