Question

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ayuda
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Answer 1

Respuesta:

Explicación paso a paso:

a)  6( x + 5 ) - 5x = 25

    6x + 30 - 5x  = 25

x + 30 = 25

x = 25 - 30

x = - 5

b) 5( x - 3 ) = 4( x + 4)

5x - 15 = 4x + 16

5x - 4x = 16 + 15

x = 31

c) 3( 3 - x ) + 9 = 2( x - 4 ) + 6

9 - 3x + 9 = 2x - 8 + 6

18 - 3x = 2x - 2

- 3x - 2x = -2 - 18

- 5x = - 20

x = -20/ -5 = 4

d) 6(3x + 5) = 3( 20 + x)

18x + 30 = 60 + 3x

18x - 3x = 60 - 30

15x = 30

x = 30 / 15 = 2

e) 3( x - 1 ) + 4 = 6(x - 1 ) - 5

3X -3 + 4 = 6X - 6 - 5

3X + 1 = 6X - 11

3X - 6X = -11 - 1

-3X = - 12

X = -12 / - 3

X = 4