Question

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Answer 1

`x=-11`

Explanation:

`√(5-x)=4`

Square both sides:

`(√(5-x))^2=4^2`

`5-x=16`

Subtract 5 from both sides:

`5-x-5=16-5`

`-x=11`

Divide both sides by -1:

`(-x)/(-1)=(11)/(-1)`

`x=-11`

Answer 2

Answer:1

Explanation: