6b+5=8b-21

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Solution for 6b+5=8b-21 equation:


Simplifying
6b + 5 = 8b + -21

Reorder the terms:
5 + 6b = 8b + -21

Reorder the terms:
5 + 6b = -21 + 8b

Solving
5 + 6b = -21 + 8b

Solving for variable 'b'.

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

Add '-8b' to each side of the equation.
5 + 6b + -8b = -21 + 8b + -8b

Combine like terms: 6b + -8b = -2b
5 + -2b = -21 + 8b + -8b

Combine like terms: 8b + -8b = 0
5 + -2b = -21 + 0
5 + -2b = -21

Add '-5' to each side of the equation.
5 + -5 + -2b = -21 + -5

Combine like terms: 5 + -5 = 0
0 + -2b = -21 + -5
-2b = -21 + -5

Combine like terms: -21 + -5 = -26
-2b = -26

Divide each side by '-2'.
b = 13

Simplifying
b = 13

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