Question

If f(x + 1) = x + 2 then f(x - 1) is

Answer 1

Answer:
`\Large\boxed{f(x-1)=x}`

Explanation:

Given function

f(x + 1) = x + 2

Isolate [ x + 1 ] on the right-hand side

f(x + 1) = x + 1 + 1

f(x + 1) = (x + 1) + 1

Substitute [ x + 1 ] with x

f(x) = x + 1

Substitute [ x ] with [ x - 1 ]

f(x - 1) = (x - 1) + 1

`\Large\boxed{f(x-1)=x}`

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