Respuesta:
3
Explicación paso a paso:
[tex]( \sqrt{6x - 9} ).7 = 21 \\ \sqrt{6x - 9} = \frac{21}{7} \\ \sqrt{6x - 9} = 3 \\ 6x - 9 = {3}^{2} \\ 6x - 9 = 9 \\ 6x = 9 + 9 \\ 6x = 18 \\ x = \frac{18}{6} \\ x = 3[/tex]
(√6x-9)7=21
√6x-9=3
(√6x-9² = 3²
6x-9=3²
2x-3=3
2x=3+3
2x=6
x=3
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Respuesta:
3
Explicación paso a paso:
[tex]( \sqrt{6x - 9} ).7 = 21 \\ \sqrt{6x - 9} = \frac{21}{7} \\ \sqrt{6x - 9} = 3 \\ 6x - 9 = {3}^{2} \\ 6x - 9 = 9 \\ 6x = 9 + 9 \\ 6x = 18 \\ x = \frac{18}{6} \\ x = 3[/tex]
(√6x-9)7=21
√6x-9=3
(√6x-9² = 3²
6x-9=3²
2x-3=3
2x=3+3
2x=6
x=3