Question

simplify : - {- 2b - (3b + 7c)}

Answer : 5b + 7c

How? Step by step explanation -​

Answer 1

Answer:

-{-2b-3b-7c}

2b+3b+7c

5b+7c

hope u understand

Step-by-step explanation:

Answer 2

$- ( - 2b - (3b + 7c)) \\ = - ( - 2b - 3b - 7c) \\ = - ( - 5b - 7b) \\ = 5b + 7c$

hope it helps...

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