The speed of driving a car is 7 times that of riding a bicycle, and the speed of driving a car is 90 kilometers faster than riding a bicycle. What is the speed of the car?
开汽车的速度是骑自行车的7倍，开汽车的速度比骑自行车快90千米．开汽车的速度是多少？
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">90 / 6</gadget>
<output>15</output>

<gadget id="calculator">15 * 7</gadget>
<output>105</output>

<result>105</result>