Question

$\sqrt{2x} - 1 = - 7$
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Answer 1

Respuesta:

$x = 18$

$\sqrt{2x} - 1 = - 7 \\ \sqrt{2x} = - 7 + 1 \\ 2x = { (- 6)}^{2} = 36 \\ x = \frac{36}{2} = 18 \\ x = 18$