-9-b+8b=-12

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Solution for -9-b+8b=-12 equation: 


Simplifying
-9 + -1b + 8b = -12

Combine like terms: -1b + 8b = 7b
-9 + 7b = -12

Solving
-9 + 7b = -12

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 + 7b = -12 + 9

Combine like terms: -9 + 9 = 0
0 + 7b = -12 + 9
7b = -12 + 9

Combine like terms: -12 + 9 = -3
7b = -3

Divide each side by '7'.
b = -0.4285714286

Simplifying
b = -0.4285714286

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