12b-9+2b-b=-87b

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Solution for 12b-9+2b-b=-87b equation:


Simplifying
12b + -9 + 2b + -1b = -87b

Reorder the terms:
-9 + 12b + 2b + -1b = -87b

Combine like terms: 12b + 2b = 14b
-9 + 14b + -1b = -87b

Combine like terms: 14b + -1b = 13b
-9 + 13b = -87b

Solving
-9 + 13b = -87b

Solving for variable 'b'.

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

Add '87b' to each side of the equation.
-9 + 13b + 87b = -87b + 87b

Combine like terms: 13b + 87b = 100b
-9 + 100b = -87b + 87b

Combine like terms: -87b + 87b = 0
-9 + 100b = 0

Add '9' to each side of the equation.
-9 + 9 + 100b = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 100b = 0 + 9
100b = 0 + 9

Combine like terms: 0 + 9 = 9
100b = 9

Divide each side by '100'.
b = 0.09

Simplifying
b = 0.09

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