Question

Operaciones combinadas
3 × 4 - 14 ÷ 7 + 7 =
5 + (6 ÷ 2 + 8 ) - (9 + 2 × 3)
7 × 8 + [3 + 5 × ( 7 - 12 ÷ 4) ] - 9

Answer 1

$3.4 -14 : 7 + 7 =$
$12 - 2 + 7 =$
$10 + 7 =$
$\fbox{17}$

$5 + (6:2+8) - (9 + 2 . 3) =$
$5 + (3 + 8) - (9 + 6) =$
$5 + 11 - 15 =$
$16 - 15 =$
$\fbox{1}$

$7 . 8 + [ 3 + 5 . (7 - 12 : 4) ] - 9 =$
$7 . 8 + [ 3 + 5 . ( 7 - 3) ] - 9 =$
$7 . 8 + [ 3 + 5 . 4 ] - 9 =$
$7 . 8 + [ 3 + 20] - 9 =$
$7 . 8 + 23 - 9 =$
$56 + 23 - 9 =$
$79 - 9 =$
$\fbox{70}$