Question

{[(8×4+3)÷7+(3+15÷5)×3]×2-(19-7)÷6}×2+12

Answer 1

Boa tarde

((1/7 (8*4 + 3) + (3 + 15/5)*3)*2 - (19 - 7)/6)*2 + 12

= ( (5 + 18)*2 - (12/6))*2 + 12 
= (46 - 2)*2 + 12 
= 2*44 + 12
= 88 + 12 
= 100