Let $x$ be a number that satisfies both equations $18x^2+25x-3=0$ and $4x^2+8x+3=0$. Find the value of $x$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Let $x$ be a number that satisfies both equations $18x^2+25x-3=0$ and $4x^2+8x+3=0$. Find the value of $x$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
-\frac32
Let $x$ be a number that satisfies both equations $18x^2+25x-3=0$ and $4x^2+8x+3=0$. Find the value of $x$.
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