simplify :- - 2a-[4b+(6b-2c+{5a+7}-(3b+5c)]
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answer for the given problem is given
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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
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