There is a number, multiply it by 4 and subtract 46, then divide the difference by 3, then subtract 10, and finally get 40, ask: What is this number?
有一个数，把它乘4以后减去46，再把所得的差除以3，然后减去10，最后得40，问：这个数是几？
<gadget id="calculator">40 + 10</gadget>
<output>50</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">150 + 46</gadget>
<output>196</output>

<gadget id="calculator">196 / 4</gadget>
<output>49</output>

<result>49</result>