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Answer:
Expression 2b+b and 3b have same values for all values of b.
Step-by-step explanation:
Given the two expression and
and values of b as 1, 2 and 3.
Consider first expression that is, .
Substituting the value of ,
....1
Substituting the value of ,
....2
Substituting the value of ,
....3
Consider second expression that is, .
Substituting the value of ,
....4
Substituting the value of ,
....5
Substituting the value of ,
....6
For value of b=1, equation 1 and equation 4 are same, for value of b=2, equation 2 and equation 5 are same and for value of b=3 equation 3 and equation 6 are same.
Therefore both expression are same for all values of b.