Respuesta:
[tex]2m + n = 9 \\ m - n = 3 \\ m = 3 + n \\ 2(3 + n) + n = 9 \\ 6 + 2n + n = 9 \\ 6 + 3n = 9 \\ 3n = 9 - 6 \\ 3n = 3 \\ n = \frac{3}{3} = 1 \\ m = 3 + n = 3 + 1 = 4[/tex]
Explicación paso a paso:
[tex]w + t = 12 \\ w = 12 - t \\ 2w - t = 9 \\ 2(12 - t) - t = 9 \\ 24 - 2t - t = 9 \\ 24 - 3t = 9 \\ - 3t = 9 - 24 \\ - 3t = - 15 \\ 3t = 15 \\ t = \frac{15}{3} = 5 \\ w = 12 - t = 12 - 5 = 7 \\ w = 7[/tex]
espero te sirva
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Verified answer
Respuesta:
[tex]2m + n = 9 \\ m - n = 3 \\ m = 3 + n \\ 2(3 + n) + n = 9 \\ 6 + 2n + n = 9 \\ 6 + 3n = 9 \\ 3n = 9 - 6 \\ 3n = 3 \\ n = \frac{3}{3} = 1 \\ m = 3 + n = 3 + 1 = 4[/tex]
Explicación paso a paso:
[tex]w + t = 12 \\ w = 12 - t \\ 2w - t = 9 \\ 2(12 - t) - t = 9 \\ 24 - 2t - t = 9 \\ 24 - 3t = 9 \\ - 3t = 9 - 24 \\ - 3t = - 15 \\ 3t = 15 \\ t = \frac{15}{3} = 5 \\ w = 12 - t = 12 - 5 = 7 \\ w = 7[/tex]
espero te sirva