Vanessa will graph the lines $y = \frac{1}{3}x + 7$ and $y = 2x+5$. What is the sum of the $x$-coordinates of the two lines' $x$-intercepts? Express your answer as a decimal to the nearest tenth.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Vanessa will graph the lines $y = \frac{1}{3}x + 7$ and $y = 2x+5$. What is the sum of the $x$-coordinates of the two lines' $x$-intercepts? Express your answer as a decimal to the nearest tenth.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
-23.5
Vanessa will graph the lines $y = \frac{1}{3}x + 7$ and $y = 2x+5$. What is the sum of the $x$-coordinates of the two lines' $x$-intercepts? Express your answer as a decimal to the nearest tenth.
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