Question

Simplify
1》3a +(6a -5)+5
2》 3 - {2ab + ( 3b - 5b ) - 7b - 8 ab }
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Answer 1

3a +(6a - 5) + 5

3a + 6a -5 + 5

9a

3 - {2ab + ( 3b - 5b ) - 7b - 8ab }

3 - {2ab + 3b - 5b - 7b - 8ab}

3 - { -6ab - 9}

3 + 6ab + 9

12 + 6ab

hope my answer helps you!