2b+6+b=90

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Solution for 2b+6+b=90 equation: 


Simplifying
2b + 6 + b = 90

Reorder the terms:
6 + 2b + b = 90

Combine like terms: 2b + b = 3b
6 + 3b = 90

Solving
6 + 3b = 90

Solving for variable 'b'.

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

Add '-6' to each side of the equation.
6 + -6 + 3b = 90 + -6

Combine like terms: 6 + -6 = 0
0 + 3b = 90 + -6
3b = 90 + -6

Combine like terms: 90 + -6 = 84
3b = 84

Divide each side by '3'.
b = 28

Simplifying
b = 28

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