Gente me ajuda pff
a- -2+3(-5)+2(-60)
b- -2{-3[2+6(-7+3-6)]}-2
pff gente vale muito pontoo
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a) 
b)
![-2{-3[2+6(-7+3-6)]}-2=\\\\-2{-3[2+6(-10)]}-2=\\\\-2{-3(-58)}-2=-2{+174}-2=170](https://tex.z-dn.net/?f=-2%7B-3%5B2%2B6%28-7%2B3-6%29%5D%7D-2%3D%5C%5C%5C%5C-2%7B-3%5B2%2B6%28-10%29%5D%7D-2%3D%5C%5C%5C%5C-2%7B-3%28-58%29%7D-2%3D-2%7B%2B174%7D-2%3D170 "-2{-3[2+6(-7+3-6)]}-2=\\\\-2{-3[2+6(-10)]}-2=\\\\-2{-3(-58)}-2=-2{+174}-2=170")
b)
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