-12.2=2.1b-3.9-6.2

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Solution for -12.2=2.1b-3.9-6.2 equation: 


Simplifying
-12.2 = 2.1b + -3.9 + -6.2

Reorder the terms:
-12.2 = -3.9 + -6.2 + 2.1b

Combine like terms: -3.9 + -6.2 = -10.1
-12.2 = -10.1 + 2.1b

Solving
-12.2 = -10.1 + 2.1b

Solving for variable 'b'.

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

Add '-2.1b' to each side of the equation.
-12.2 + -2.1b = -10.1 + 2.1b + -2.1b

Combine like terms: 2.1b + -2.1b = 0.0
-12.2 + -2.1b = -10.1 + 0.0
-12.2 + -2.1b = -10.1

Add '12.2' to each side of the equation.
-12.2 + 12.2 + -2.1b = -10.1 + 12.2

Combine like terms: -12.2 + 12.2 = 0.0
0.0 + -2.1b = -10.1 + 12.2
-2.1b = -10.1 + 12.2

Combine like terms: -10.1 + 12.2 = 2.1
-2.1b = 2.1

Divide each side by '-2.1'.
b = -1

Simplifying
b = -1

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