Question

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Answer 1

Respuesta:

A) 1

B) 4

C) 6,9282

Explicación paso a paso:

A) -4(2x-1)+ 18 = 6-2 (-5+x)

-8x + 4 + 18 = 6 + 10 - 2x

-8x + 22 = 16 - 2x

-8x+2x = 16 - 22

-6x=-6

x= -6 : (-6)

x= 1

B) 4(x-1) + 10 = 2 (x+7)

4x-4+10 = 2x + 14

4x + 6 = 2x + 14

4x - 2x = 14 - 6

2x = 8

x = 8 : 2

x= 4

c) 8 = -1/4$x^{2}$ + 20

1/4$x^{2}$ = -8 +20

1/4$x^{2}$ = 12

$x^{2}$ = 12 : 1/4

$x^{2}$ = 48

x = $\sqrt{48}$

x= 6,9282