It is known that 9.6-2x=2.4, then what is 4(x-1.5)=.
已知9.6-2x=2.4，那么4(x-1.5)=多少．
<gadget id="calculator">9.6 - 2.4</gadget>
<output>7.2</output>

<gadget id="calculator">7.2 / 2</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 - 1.5</gadget>
<output>2.1</output>

<gadget id="calculator">4 * 2.1</gadget>
<output>8.4</output>

<result>8.4</result>