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

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


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

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

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

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

Combine like terms: 12b + -1b = 11b
-9 + 11b = -87

Solving
-9 + 11b = -87

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + 11b = -87 + 9

Combine like terms: -9 + 9 = 0
0 + 11b = -87 + 9
11b = -87 + 9

Combine like terms: -87 + 9 = -78
11b = -78

Divide each side by '11'.
b = -7.090909091

Simplifying
b = -7.090909091

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