Selesaikan persamaan linear satu variabel dibawah ini! A.n+5=9 b.3x+28=-7 - 4x
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A. n + 5 = 9
n + 5 = 9
n = 9 - 5
n = 4
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B. 3x + 28 = - 7 - 4x
3x + 28 = - 7 - 4x
7 + 28 = - 4x - 3x
35 = - 7x
x = 35/- 7
x = - 5
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