Question

a) 2 ( x - 4 ) = x + 7
b) ( x + 2 ) × 6 = 2 ( 10 + x )

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Answer 1

Respuesta:

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Explicación paso a paso:

a)

2 ( x - 4 ) = x + 7

2x - 8 = x + 7

2x = x + 7 + 8

2x - x = 15

x = 15

b)

( x + 2 ) × 6 = 2 ( 10 + x )

6x + 12 = 20 + 2x

6x - 2x + 12 = 20

4x = 20 - 12

4x = 8

x = 8/4

x = 2