Respuesta :

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Answer:

[tex]C=\frac{3d+30}{10}[/tex]

Step-by-step explanation:

[tex]10C-3d=30[/tex]

Add 3d to both sides.

[tex]10C=30+3d[/tex]

Divide both sides by 10.

[tex]C=\frac{3d+30}{10}[/tex]