WILL MARK BRAINLEAST 100% 20 POINTS

Plz answer Honestly or I'll report your answer but only if it's wrong

-3 + { 1 – 3[20 + 2(-6 – 7)]}
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WILL MARK BRAINLEAST 100 20 POINTS Plz answer Honestly or Ill report your answer but only if its wrong 3 1 320 26 7 SIMPLIFY ANSWER class=