If the equation 4X-5=7, then the algebraic formula 4(X+2)=how much.
如果方程4X-5=7，那么代数式4(X+2)=多少．
<gadget id="calculator">5 + 7</gadget>
<output>12</output>

<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<result>20</result>