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Sagot :

salut,

A. x = 1

B. x = 5/2

C. x = 7

[tex]x+3=4[/tex]

[tex]x=4-3[/tex]

[tex]x=1[/tex]

[tex]4x=10[/tex]

[tex]\frac{4x}{4} =\frac{10}{4}[/tex]

[tex]x=\frac{10}{4} = \frac{5}{2}[/tex]

[tex]5x+3=38[/tex]

[tex]5x=38-3[/tex]

[tex]5x=35[/tex]

[tex]x=7[/tex]

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