1.nilai x yg memenuhi persamaan x-3/4=4-x/-3 2.nilai x yg memenuhi x-3/2=2x-4/3
Matematika
argia21
Pertanyaan
1.nilai x yg memenuhi persamaan x-3/4=4-x/-3
2.nilai x yg memenuhi x-3/2=2x-4/3
2.nilai x yg memenuhi x-3/2=2x-4/3
1 Jawaban
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1. Jawaban Anonyme
jawab
(1)
(x-3) / 4 = (4 -x) (-3)
-3(x - 3) = 4(4 - x)
-3x + 9 = 16 - 4x
-3x + 4x = 16 - 9
x = 7
(2)
(x - 3)/2 = (2x - 4)/3
3(x -3) = 2(2x - 4)
3x - 9 = 4x - 8
3x - 4x = 9 - 8
-x = 1
x = -1