Question

`-2b-(-7)=11`

Answer 1

b = -2

Explanation:

`- 2b - ( - 7) = 11`

`- 2b + 7 = 11`

`- 2b + 7 - 7 = 11 - 7`

`- 2b = 11 - 7`

`- 2b = 4`

`b = 4 /( - 2) = - 4 / 2`

`\boxed{\green{b = - 2}}`

Answer 2

2

Explanation:

`- 2b - ( - 7) = 11 \\ \\ - 2b + 7 = 11 \\ \\ - 2b = 11 - 7 \\ \\ - 2b = 4 \\ \\ b = (4)/( 2) \\ \\ b = 2`

Hope it help you