The price of each washing machine in the electrical store is 830 yuan, and the price of each refrigerator is 150 yuan less than four times that of the washing machine. How much is each refrigerator?
电器商场每台洗衣机830元，每台冰箱的售价比洗衣机的4倍少150元．每台冰箱多少元？
<gadget id="calculator">830 * 4</gadget>
<output>3_320</output>

<gadget id="calculator">3_320 - 150</gadget>
<output>3_170</output>

<result>3_170</result>