100 Things Jets Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

100 Things Jets Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

Matematika menggunakan metode substitusi, besok kumpull​

menggunakan metode substitusi, besok kumpull​

y = 4x + 1

4x = y - 1

x = (y-1)/4

y = 7x - 2

y = 7((y-1)/4) - 2

y = {(7y-7)/4} -2

4y = 7y-7-8

15 = 3y

y = 5

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