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What is the value of x, if [0.9 {1.1 - 0...

What is the value of x, if `[0.9 {1.1 - 0.3 (0.3 -0.2 -: 0.5) + 0.4}] -: 0.81 = x + 1 `

A

`-0.8`

B

`0.7`

C

`1`

D

`-0.52`

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