Question

ecuaciones verificadas
a)3×+4×+5=6×-7
b)8×+4×=10×-20
c)2(×+3)=27
d)1×+9×=2×+3
3
e)
$\sqrt{x + 1 = 5}$
f)
$2 \sqrt{ \times = 6}$
g)
$\sqrt{ \times + 3 = 5}$

h)
$\times = \sqrt{16 - 2 \times }$
i)
${ \times }^{2} - 1 = 3$

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Answer 1

Respuesta:

$a)3x + 4x + 5 = 6x - 7 \\ 3x + 4x - 6x = - 7 - 5 \\ 7x - 6x = - 12 \\ = 1x = - 12 \\ x = \frac{ - 12}{1} \\ x = 12$

$8x + 4x = 10x - 20 \\ 8x + 4x - 10x = - 20 \\ 12x - 10x = - 20 \\ 2x = - 20 \\ x = \frac{ - 20}{2} \\ x = 10$

$2(x + 3) = 27 \\ 2x + 6 = 27 \\ 2x = 27 - 6 \\ 2x = 21 \\ x = \frac{21}{2} \\ x = 10.5$

$1x + 9x = 2x + 3 \\ 1x + 9x - 2x = 3 \\10x - 2x = 3 \\8x = 3 \\ x = \frac{3}{8} \\ x = 0.375$

Explicación paso a paso:

no me salen as demas ecuaciones para ayudarte la e,f,g,h,i