Question

como resolver as seguintes equações
51 - 3 . [10 + (8 + 12) : 5 - 1 ] =

7 . 9 - { 6 + 4 . [8 + 12 : [ 5 - 1 ) ] } =

28 + 2 . { 8 + 24 : [ ( 2 + 1 ) . 3 - 1 ] } =

Answer 1

51-3.[10+(8+12):5-1]=

51-3[10+20:5-1]=

51-3.[10+4-1]=

51-3.13=

51-39=12


7.9-{6+4.[8+12:(5-1)]}=

63-{6+4.[8+12:4]}=

63-{6+4.[8+3]}=

63-{6+4.11}=

63-{6+44}=

63-50=13


28+2.{8+24:[(2+1).3-1]}=

28+2.{8+24:[3.3-1]}=

28+2.{8+24:[9-1]}=

28+2.{8+24:8}=

28+2.{8+3}=

28+2.11=

28+22=50