4+3b+b=72

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Solution for 4+3b+b=72 equation: 


Simplifying
4 + 3b + b = 72

Combine like terms: 3b + b = 4b
4 + 4b = 72

Solving
4 + 4b = 72

Solving for variable 'b'.

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

Add '-4' to each side of the equation.
4 + -4 + 4b = 72 + -4

Combine like terms: 4 + -4 = 0
0 + 4b = 72 + -4
4b = 72 + -4

Combine like terms: 72 + -4 = 68
4b = 68

Divide each side by '4'.
b = 17

Simplifying
b = 17

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