Jika 4x+2y=2 & 7x+4y=2 maka nilai 5x-3y adalah

======= Jawaban ======
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Pertayaan yg diajukan = 1
Sub. Bab = -

Pembahasan :
4x + 2y = 2 | ×2
7x + 4y = 2 | ×1

8x + 4y = 4
7x + 4y = 2
--------------- (-)
x = 2

4x + 2y = 2
8 + 2y = 2
2y = 2 - 8
2y = -6
y = -6/2
y = -3

5x - 3y
= 5(2) - 3(-3)
= 10 - (-9)
= 19 [tex] [/tex]
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