Answer :

Given the figure attached:

Any two sides on a triangle have to be greater than the third side, so:

[tex]3x+2+2x+6\text{ > 10}[/tex]

solving for x:

[tex]\begin{gathered} 5x\text{ > }10-2-6 \\ 5x\text{ > }2 \\ x>0.4 \end{gathered}[/tex]

ANSWER

x > 0.4

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