Question 973719

{{{-7-20-(-14)}}}
= {{{-7+20+14}}}=> here you made mistake...you have {{{-7-20}}} which means you adding two negative numbers, so recall the rule that says if you adding two negative numbers, you add their absolute value and give the sum negative sign; so,{{{-7-20=-27}}}, then you have
= {{{-27 +14}}}
={{{13}}}