Mathematics, 03.12.2019 01:31, ghernadez

Simplify. consider all the cases.
example:
x−5=

x−5, if x> 5
0, if x=5
5−x, if x< 5

2x+7

a) if x > , then 2x + 7 =
b)if x = , then 2x + 7 =
c) if x < , then 2x + 7 =
(x−4)+7

if x > , then (x − 4) + 7 =
if x = , then (x − 4) + 7 =
if x < , then (x − 4) + 7 =

7−(x−7)

if x > , then 7 − (x − 7) =
if x = , then 7 − (x − 7) =
if x < , then 7 − (x − 7) =

7−(12−x)

if x > , then 7 − (12 − x)=
if x = , then 7 − (12 − x =
if x < , then 7 − (12 − x)=

Answers: 3

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Do you know the correct answer?

Simplify. consider all the cases.
example:
x−5=

x−5, if x> 5
0,...