Question

Me ajudem a resolver 2calculos
a)14:2+[13-(4.2+1)]=?
b)7-{64-3.[1+70:(3+4).1+10]}+5=?

Answer 1

14 : 2 + [ 13 - ( 4.2 + 1 ) ] =
14: 2 + [ 13 - ( 8 + 1) ] = 
14 : 2 + [ 13 - 9 ] =
  7 + 4 = 11
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7 - { 64 - 3. [ 1 + 70 : ( 3 + 4 ) .1 + 10 ] } + 5 =
7 - { 64 - 3. [ 1 + 70 : 7 .1 + 10 ]} + 5 =
7 - { 64 - 3 . [ 1 + 10 ] } =
7 - { 64  - 3 . 11 } =
7 - { 64 - 33 }
7 - 31 = - 24