Question 601270
7+{6-4[5-2(4+5)]+3}


7+{6-4[5-2(9)]+3}


7+{6-4[5-18]+3}


7+{6-4[-13]+3}


7+{6+52+3}


7+{61}


7+61


68



So 7+{6-4[5-2(4+5)]+3} = <font color="red">68</font>