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SKABETIX

Bonjour,

[tex] \frac{2x + 5}{2} = 5(2x - 3)[/tex]

[tex] \frac{2x + 5}{2} \times 2 = 2 \times 5(2x - 3)[/tex]

[tex]2x + 5 = 10(2x - 3)[/tex]

[tex]2x + 5 = 20x - 30[/tex]

[tex]20x - 2x = 30 +5[/tex]

[tex]18x = 35[/tex]

[tex]x = \frac{35}{18} [/tex]

VINS

bonjour

( 2 x + 5 ) / 2 = 5 ( 2 x - 3 )

( 2 x + 5 ) / 2 = 10 x - 15

( 2 x + 5 ) / 2 = ( 20 x - 30 ) / 2

2 x + 5 = 20 x - 30

2 x - 20 x = - 30 - 5

- 18 x = - 35

x = 35/18

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