Question

simplify 12-[6a-(7-vinculum of a-5)-{5a(3-vinculum of 2-a)}]

Answer 1

Ans:- 12 -[6a - (7- a - 5] -{5a(3- 2 - a)}

= 12 - [6a -(7 - a - 5)] - {5a + (3 - 2 - a)}

= 12 - [6a - 2 + a] - {5a + 1 - a}

= 12 - [6a - 2 + a] - 4a - 1

= 12 - 6a + 2 - a - 4a - 1

= 14 - 11a

here is your answer

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