16-09-2014
Mathematics

contestada

what is the value of 4x+9 if x=3?

Respuesta :

16-09-2014

[tex]x=3 \\ \\ 4x+9=4 \cdot 3 + 9 =12+9=21[/tex]

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17-09-2014

Just insert the number. (3)
4(3)+9
12+9=21

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