Explicación paso a paso:
[tex]a) \: 3x + y = 5 \\ y = 5 - 3x \\ y = - 3x + 5 \\ b) \: - 2x - y = 7 \\ - y = 7 + 2x \\ y = - 2x + 7 \\ c) \: - 4x - 2y = \frac{1}{6} \\ - 2y = \frac{1}{6} + 4x \\ 2y = - 4x - \frac{1}{6} \\ 2y = \frac{ - 24x - 1}{6} \\ y = \frac{ - 24x - 1}{12} \\ y = \frac{ - 24x}{12} - \frac{1}{12} \\ y = - 2x - \frac{1}{12} [/tex]
[tex]2x + 0.5y = 1.2 \\ 0.5y = 1.2 - 2x \\ y = \frac{1.2 - 2x}{0.5} \\ y = \frac{ - 2x + 1.2}{0.5} \\ y = \frac{ - 2x}{0.5} + \frac{1.2}{0.5} \\ y = - 4x + 2.4[/tex]
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Verified answer
Explicación paso a paso:
[tex]a) \: 3x + y = 5 \\ y = 5 - 3x \\ y = - 3x + 5 \\ b) \: - 2x - y = 7 \\ - y = 7 + 2x \\ y = - 2x + 7 \\ c) \: - 4x - 2y = \frac{1}{6} \\ - 2y = \frac{1}{6} + 4x \\ 2y = - 4x - \frac{1}{6} \\ 2y = \frac{ - 24x - 1}{6} \\ y = \frac{ - 24x - 1}{12} \\ y = \frac{ - 24x}{12} - \frac{1}{12} \\ y = - 2x - \frac{1}{12} [/tex]
[tex]2x + 0.5y = 1.2 \\ 0.5y = 1.2 - 2x \\ y = \frac{1.2 - 2x}{0.5} \\ y = \frac{ - 2x + 1.2}{0.5} \\ y = \frac{ - 2x}{0.5} + \frac{1.2}{0.5} \\ y = - 4x + 2.4[/tex]