me ayudan porfa es urgente lo nesesito ahora
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12x + 5 = 20
12x = 15
x = 15/12
x = 5/4
15x + 1 = 16
15x = 15
x = 15/15
x = 1
5x + 5x + 8x = 30
18x = 30
x = 30/18
x = 5/3
9x = 18
x = 18/9
x = 2
x - 27 = 40
x = 40 + 27
x = 67
3x + 5 = 50
3x = 45
x = 45/3
x = 15
4x + 5x + 8x = 30
17x = 30
x = 30/17
4x + 2 = 60
4x = 60 - 2
4x = 58
x = 58/4
x = 29/2
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