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

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


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

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

Combine like terms: 12b + -1b = 11b
-9 + 11b + 2n = -87

Solving
-9 + 11b + 2n = -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 + 11b + 9 + 2n = -87 + 9

Reorder the terms:
-9 + 9 + 11b + 2n = -87 + 9

Combine like terms: -9 + 9 = 0
0 + 11b + 2n = -87 + 9
11b + 2n = -87 + 9

Combine like terms: -87 + 9 = -78
11b + 2n = -78

Add '-2n' to each side of the equation.
11b + 2n + -2n = -78 + -2n

Combine like terms: 2n + -2n = 0
11b + 0 = -78 + -2n
11b = -78 + -2n

Divide each side by '11'.
b = -7.090909091 + -0.1818181818n

Simplifying
b = -7.090909091 + -0.1818181818n

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