Question

a) – 2 + { - 3 – [7 + 4(- 2 + 5) ] } – 4=
b) [ 3 ⋅ (7 − 2 ⋅ 4) + :4 (1 − 3) ] : [ ( 2 − 7 ) ⋅ ( 4 − 7 ) : (− 3 ) ] =
c) [ ( 3 ⋅ 4 − 2 ⋅ 5 ) ⋅ (1 − 5 )] : [ −3 ⋅ ( 5 − 7 ) − (1 − 3 ) ] −1=
d) 5 − 3 ⋅ [ 2 ⋅ ( 4 − 1 ) − 3 ⋅ ( −1 − 5 ) − 4:8 − 2 ] − 55 =
e) −{3 − [ 2 − ( − 3 )]} − {4 − [ − 5 − ( 2 − 5) − 2 ]}=
f) 2 - 3 [ ( 5-2 ) ( 3-6 ) + 10 : ( 5 -7 ) ]=

Answer 1

No entiendo lo siento perdón :(