Question 710678


{{{7-(-13)-(-4)+(-9)+2}}}.....recall, subtracting a negative number is the same as adding a positive; so, {{{7-(-13)=7+13}}}


{{{7+13-(-4)+(-9)+2}}}....{{{minus*minus=plus}}}; so,{{{-(-4)}}} is actually {{{-1*(-4)}}} and it is {{{1*4=4}}}


{{{7+13+4+(-9)+2}}}....{{{minus*plus=minus}}}; so,{{{+(-9)}}} is actually {{{+1*(-9)}}} and it is {{{-9}}}


{{{7+13+4-9+2}}}


{{{26-9}}}


{{{17}}}