b-5+2b=31

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Solution for b-5+2b=31 equation: 


Simplifying
b + -5 + 2b = 31

Reorder the terms:
-5 + b + 2b = 31

Combine like terms: b + 2b = 3b
-5 + 3b = 31

Solving
-5 + 3b = 31

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + 3b = 31 + 5

Combine like terms: -5 + 5 = 0
0 + 3b = 31 + 5
3b = 31 + 5

Combine like terms: 31 + 5 = 36
3b = 36

Divide each side by '3'.
b = 12

Simplifying
b = 12

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