x − 783 = 58 * 45
x − 783 = 2610
x = 2610 + 783
x = 3393

Вычисления
$\snippet{name: column_multiplication, x: 58, y: 45}$
 
$\snippet{name: op_column, sign: '+', x: '2610', y: '783', z: '3393 '}$
 
 

x * 46 = 2 * 2484
x * 46 = 4968
x = 4968 : 46
x = 108

Вычисления
$\snippet{name: column_multiplication, x: 2484, y: 2}$
 
$\snippet{name: long_division, x: 4968, y: 46}$