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Jawab:
C
Penjelasan dengan langkah-langkah:
karena sejajar, maka m₁ = m₂
6x-4y = 6
-4y = 6-6x
y = -3/2+3/2x --> m₁ = 3/2
mx+(4m-3)y = 12
(4m-3)y = 12-mx
y = 12/(4m-3)-mx/(4m-3) --> m₂ = -m/4m-3
m₁ = m₂
3/2 = -m/4m-3
3(4m-3) = -2m
12m-9 = -2m
14m = 9
m = 9/14