-3.9=3b

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Solution for -3.9=3b equation:


Simplifying
-3.9 = 3b

Solving
-3.9 = 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-3.9 + -3b = 3b + -3b

Combine like terms: 3b + -3b = 0
-3.9 + -3b = 0

Add '3.9' to each side of the equation.
-3.9 + 3.9 + -3b = 0 + 3.9

Combine like terms: -3.9 + 3.9 = 0.0
0.0 + -3b = 0 + 3.9
-3b = 0 + 3.9

Combine like terms: 0 + 3.9 = 3.9
-3b = 3.9

Divide each side by '-3'.
b = -1.3

Simplifying
b = -1.3

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