Find the value of |x+b| + |x + a| + |a-b| ___

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Solution

|x+b| or |x - (-b)| is the distance of x from -b, it is given as 4.

Similarly |x+a| = 5

|-b - (-a)| or |-b + a| or |a- b| is the distance of -a from -b. Its given as 4+5 = 9.

So, |x+b| + |x+a| + |a-b| = 4+5+9.

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