Question

2 × ( ____ - 3) = 2 × 15 − 2 × 3

Answer 1

Let the missing number be 'x'.

$2 \times (x - 3) = 2 \times 15 - 2 \times 3$

$\implies 2x - 6 = 30 - 6$

$\implies 2x = 30$

$\therefore x = 15$