To find the number of visits at which the costs of the two plans are equal, we can set up the equation based on the given options.
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The first option charges $10 per visit: \[ \text{Cost}_1 = 10x \]
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The second option charges $32 per month and $6 per visit: \[ \text{Cost}_2 = 32 + 6x \]
Now we can set the two costs equal to each other to find the number of visits \( x \):
\[ 10x = 32 + 6x \]
Next, we will isolate \( x \) by moving \( 6x \) to the left side of the equation:
\[ 10x - 6x = 32 \] \[ 4x = 32 \]
Now, divide both sides by 4:
\[ x = \frac{32}{4} \] \[ x = 8 \]
Thus, the number of visits it takes for the cost of the two plans to be equal is 8.
So, the correct response is: 10x = 32 + 6x ; x = 8.