Question

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Answer 1

Respuesta:

1) x = –4

2) x = 9

3) x = 7

4) x = 19

5) x = 12

Explicación paso a paso:

1) 4x – 4 = x – 16

4x – x = 4 – 16

3x = –12

x = –12/3

x = –4

2) 5(x – 2) + 3x = 2(3x + 4)

5x – 10 + 3x = 6x + 8

5x + 3x – 6x = 8 + 10

2x = 18

x = 18/2

x = 9

3) 3(x – 1) – 4(5 – x) = 2(6 + x)

3x – 3 – 20 + 4x = 12 + 2x

3x + 4x – 2x = 12 + 3 + 20

5x = 35

x = 35/5

x = 7

4)

$\frac{2x}{3} - 8 = \frac{x}{6} + \frac{3}{2}$

$4x - 48 = x + 9$

$4x - x = 9 + 48$

$3x = 57$

$x = \frac{57}{3}$

$x = 19$

5)

$\frac{x}{2} - x = \frac{x}{4} - 9$

$2x - 4x = x - 36$

$36 = x - 2x + 4x$

$36 = 3x$

$\frac{36}{3} = x$

$12 = x$