5b+13=128

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Solution for 5b+13=128 equation: 


Simplifying
5b + 13 = 128

Reorder the terms:
13 + 5b = 128

Solving
13 + 5b = 128

Solving for variable 'b'.

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

Add '-13' to each side of the equation.
13 + -13 + 5b = 128 + -13

Combine like terms: 13 + -13 = 0
0 + 5b = 128 + -13
5b = 128 + -13

Combine like terms: 128 + -13 = 115
5b = 115

Divide each side by '5'.
b = 23

Simplifying
b = 23

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