Question

7x + 9 < 6x + 3 < 5x +1
Inecuaciones de Primer Grado
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Answer 1

$7x + 9 < 6x + 3 < 5x + 1 = \\ \\ 6x + 3 > 7x + 9 \\ 6x + 3 < 5x + 1 \\ \\ 6x + 3 > 7x + 9 \\ 6x - 7x > 9 - 3 \\ - x > 6 \\ x < - 6 \\ \\ 6x + 3 < 5x + 1 \\ 6x - 5x + 3 < 1 \\ 6x - 5x < 1 - 3 \\ x < - 2 \\ \\ = x < - 6 \\ = x < - 2 \\ \\ x€ = ( - \infty , - 6)$