Question

simplify :- - 2a-[4b+(6b-2c+{5a+7}-(3b+5c)]
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Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

-7a - 7b + 7c - 7

Step-by-step explanation:

-2a - [ 4b + { 6b - 2c + ( 5a + 7 ) - ( 3b + 5c ) } ]

1. First we solve the " ( ) " brackets.

= -2a - [ 4b + { 6b - 2c + 5a + 7 - 3b - 5c } ]

2. Then we solve the " { } " brackets.

= -2a - [ 4b + { 6b - 3b - 2c - 5c + 5a + 7 } ]

= -2a - [ 4b + 3b - 7c + 5a + 7 ]

3. And then we solve the " [ ] " brackets.

= -2a - [ 7b - 7c + 5a + 7 ]

= -2a - 7b + 7c - 5a - 7     ( the signs change here as there is a " - " sign outside the bracket )

4. We then solve the equation formed.

= -2a - 5a - 7b + 7c - 7

= -7a - 7b + 7c - 7