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4x + 12 = 7-x
5 - 4x = 2x - 1
3(x-5) = -6
4x + 12 = 7-x
5 - 4x = 2x - 1
3(x-5) = -6
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Jawaban:
No 1.
4x + 12 = 7 - x
4x + x = 7 - 12
5x = -5
x = -5/5
x = -1
No 2.
5 - 4x = 2x - 1
5 + 1 = 2x + 4x
6 = 6x
x = 6/6
x = 1
No 3.
3(x - 5) = -6
3x - 15 = -6
3x = -6 + 15
3x = 9
x = 9/3
x = 3
'조슈아' (Svt)