Answer:
[tex]\boxed{\tt D)-14x-13}[/tex]
Step-by-step explanation:
[tex]\tt -9x-3-\left(5x+3\right)-7[/tex]
[tex]\tt \left(5x+3\right)-9x-3-7[/tex]
[tex]\tt -\left(5x+3\right)-9x-10[/tex]
[tex]\tt -5x-3-9x-10[/tex]
[tex]\boxed{\tt -5x-9x}\:\boxed{\tt-3-10}[/tex]
[tex]\tt -14x-13[/tex]
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