Respuesta:
21x + 2 > 7x + 8
21x - 7x > 8 - 2
14x > 6
x > 6/14
x > 3/7
5x + 2 < 4
5x < 4 - 2
5x < 2
x < 2/5
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Respuesta:
21x + 2 > 7x + 8
21x - 7x > 8 - 2
14x > 6
x > 6/14
x > 3/7
5x + 2 < 4
5x < 4 - 2
5x < 2
x < 2/5