b-7-6-5-b-2-1=-21

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Solution for b-7-6-5-b-2-1=-21 equation: 


Simplifying
b + -7 + -6 + -5 + -1b + -2 + -1 = -21

Reorder the terms:
-7 + -6 + -5 + -2 + -1 + b + -1b = -21

Combine like terms: -7 + -6 = -13
-13 + -5 + -2 + -1 + b + -1b = -21

Combine like terms: -13 + -5 = -18
-18 + -2 + -1 + b + -1b = -21

Combine like terms: -18 + -2 = -20
-20 + -1 + b + -1b = -21

Combine like terms: -20 + -1 = -21
-21 + b + -1b = -21

Combine like terms: b + -1b = 0
-21 + 0 = -21
-21 = -21

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

Combine like terms: -21 + 21 = 0
0 = -21 + 21

Combine like terms: -21 + 21 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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