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= 2/2(x + 3) + 4/(2x +6)
=2/(2x + 6) + 4/(2x + 6)
penyebutnya sama yaitu 2x + 6, kelompokkan jadi satu
=(2 + 4)/(2x + 6)
= 6/(2x + 6)
bagi dua
= 3/( x + 3)