Question

(ii) The value of (-3){(- 6) + (20)) x (3)-(7-9) (-2) is
(a) 130
(b) - 122
(c) 65
(d)-130
Please give step by step solution​

Answer 1

Answer:

$( - 3)(( - 6) + (20)) \times (3) - (7 - 9)( - 2) \\ = ( - 3)( - 6 + 20) \times (3 - ( - 2)( - 2)) \\ = ( - 3 \times 14) \times ((3 + 2)( - 2)) \\ = - 42 \times (5 \times - 2) \\ = - 42 \times - 10 \\ = \underline{ \underline{ 420}}$