Tentukan himpunan penyelesaian persamaan berikut A.3x + 14 = 6x - 4 B.7 - 5x = 35 - x C.5x + 4 = 3(x - 2) D.(x - 8) + 4 = 3(2x + 7) - 9
Matematika
alindayy03
Pertanyaan
Tentukan himpunan penyelesaian persamaan berikut
A.3x + 14 = 6x - 4
B.7 - 5x = 35 - x
C.5x + 4 = 3(x - 2)
D.(x - 8) + 4 = 3(2x + 7) - 9
A.3x + 14 = 6x - 4
B.7 - 5x = 35 - x
C.5x + 4 = 3(x - 2)
D.(x - 8) + 4 = 3(2x + 7) - 9
1 Jawaban
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1. Jawaban tahtaalvina
a. 3x + 14 = 6x - 4
3x - 6x = - 4 - 14
- 3x = - 18
x = - 18 / - 3
x = 6
b. 7 - 5x = 35 - x
7 - 35 = - x + 5x
- 28 = 4x
-28/4 = x
- 7 = x
c. 5x + 4 = 3x - 6
5x - 3x = - 6 - 4
2x = - 10
x = - 5